Ranch Road House

The Ranch Road House isn't your typical Texas home. Made entirely out of concrete, the brooding brutalist fortress is perched on a 42-acre mountain top. Its L-shape wraps around the site affording the entire residence with panoramic views of the surrounding landscape. The 3,700-square foot interior shares the same monolithic facade as the exterior and offers 4 bedrooms, including a massive master suite, 2 bathrooms, and an optional wine cellar. The open living space's 13-foot ceilings are fitted with 7-foot tall windows that overlook the entire Texas Hill Country. And for the devoted gearhead, there's an 800-square-foot garage to house all the toys.

Parisian Carpentry Workshop

With its rugged timber beams and exposed stone walls, the Parisian Carpentry Workshop is an ode to its industrial roots. The new 4-bedroom residence is housed in a former carpentry atelier. Its main living area sits below a soaring pitched roof where frosted glazing washes the room in natural light. The open space also consists of a dining room and kitchen topped with a sleeping mezzanine. Original wood stoves remain throughout, adding to the home's historic character. While the master bedroom and a studio are also located on the ground floor, an art nouveau staircase leads down to a lower level with an additional living room, bedroom, and a pair of enfilade-style rooms. Each story has direct access to a private outdoor courtyard.

Photos: Espaces Atypiques

Koto Cabins

Koto Cabins bring a piece of Scandinavia to your neck of the woods. Named after the Finnish word for "cozy at home," the sleek, sculpted dwellings range from 161 to 430-square-feet making them ideal for backyard studios or rural retreats. Each one is clad in Siberian larch that can be charred upon request. Interiors follow the Nordic aesthetic with pale wood floors and white walls washed in natural light. Concealed storage and furniture help create a minimalist atmosphere. Underfloor heating, double glazed windows, and covered terraces come standard while customizations like wood stoves, saunas, and bespoke furniture are optional add-ons.

Photos: Joe Laverty / Koto

Little Daisy Mansion

A 40-room hotel has been converted into a mega mansion and it's up for grabs. The 1919 property was built by copper tycoon James "Rawhide Jimmy" Douglas at the entrance of Arizona's Little Daisy Mine. It has recently undergone a 9-year restoration transforming the former miners' dorm into a private estate. The 12,000-square-foot concrete shell now consists of 8 bedrooms, 7 baths, and expansive entertainment spaces. Its interior is wrapped in 2,900-square-feet of interior porches while sprawling rooftop gardens look out onto Verde Valley, Cleopatra Hill, and the city of Jerome.

Photos: Sotheby's International Realty

Razor House

If the Razor House had a theme it would be glass, glass, and more glass. Nestled into a California cliffside, the Wallace E Cunningham-designed residence pairs polished white concrete and stainless steel with vast expanses of glazing to offer endless views of the Pacific Coast. Its 10,000-square-foot interior is packed with swanky finishes like travertine stone floors, quarter-sawn stained walnut veneer, and suede-lined walls. The stone floors extend out to 6,100 square feet of outdoor terrace featuring a massive infinity pool overlooking the ocean. While the inside offers four bedrooms, two baths, a screening room, and gym, a glass elevator leads up to a rooftop deck where you'll find a spa and custom, built-in grill. For visitors, the property also offers a separate two-bedroom guest house.

Seascape Lane House

The Hamptons, Sagaponack in particular, has a reputation for being one of the most expensive zip codes in the U.S. and the Seascape Lane House is no exception. The modern, oceanfront stunner sits on an acre at the end of a secluded cul-de-sac. Its glass facade provides sweeping panoramas of Sagg Pond and the Atlantic Ocean while screens made of Alaskan cedar add an element of privacy. The 5,000-square-foot interior offers 5 bedrooms and 6 full baths fitted with European white oak floors, a chef's kitchen, and custom contemporary finishes. The main living areas are positioned on the second story in order to take advantage of the views of the coastal landscape. Sliding glass doors open to an expansive deck featuring a gunite pool and spa, a pool house, and an outdoor shower, all overlooking the pristine waterfront. The same views can be admired from above in the upper-level master bedroom and adjoining terrace.

Photos: Bespoke Real Estate

Svartviksvagen House

Perched on a rocky mountaintop overlooking the Sörmlands archipelago, the Svartviksvagen House is a three-bedroom ocean retreat. The Siberian larch-clad box hovers over the cliffside on a foundation of metal stilts. Internally, white walls and pale wood floors add to the light-filled space to create an airy, Scandinavian atmosphere fitting of its beachfront setting. The open living area is wrapped in glazing, offering panoramic views of the surrounding treetops and shore below. The glass facade opens to a wrap around deck. Shaded by an oversized roof, the outdoor terrace provides a serene space to admire the archipelago landscape. Along with beach access, the home also comes with a pier and sauna.

Paul Rand's Connecticut House

Paul Rand's modernist philosophy wasn't just in his work. The graphic designer's signature aesthetic continued into his Connecticut home. It was designed in 1951 by Rand himself along with his wife. Like his iconic logos, the mid-century modern residence is clean and minimal. Its flagstone and glass facade carries over to the interior where it is met with tile floors and plywood lining. Rooms are afforded sweeping views of the eight-acre property from floor-to-ceiling glazing as well as access to expansive outdoor terraces. The highlight of the home is the designer's massive studio. Along with the house, over 300 works from Paul Rand's personal collection will be going up for auction. The lot consists of unseen paintings and graphics, custom furniture, an assortment of fine art pieces. Conducted by Wright auction house, the sale begins September 13, 2018.

Archway Studios

Its form isn't the only thing unconventional about the Archway Studios. Built below a 19th-century London railway viaduct, it's location is equally unique. The domed structure looks like a cross between an abstract sculpture and an alien spaceship. Occupying an infill plot beneath the bridge, its steel foil facade protects the interior from the noise of the passing trains. The arched exterior continues on the inside with curved ceilings and walkways. A skylight turns the main living area into an atrium, reflecting light off of the white walls and pale wood floors to help illuminate all three stories. A staggered staircase leads to the bedrooms and a lofted study at the apex of the home.

Photos: The Modern House

Gray Head House

Comprised of ten-interlocking pavilions, the Gray Head House looks like a quaint Swiss village rather than a Rocky Mountain estate. The 6,500-square-foot vacation home is situated on a picturesque 35-acres just outside of the Colorado ski town Telluride. Organized around a circle drive, the network of limestone volumes make a crescent shape offering a distinct vantage point from each one. Living spaces are sorted by function and spread throughout the interior where contemporary furnishings offset the rustic setting. Vaulted ceilings make way for expansive glass walls to take the dramatic views of the surrounding meadows and mountain peaks.

Photos: Sotheby's International Realty

Solana Estate

After a three-year renovation, the Solana Estate is a turn-of-the-century stunner packed with every modern-day essential. The Montecito mansion was originally designed by Francis T. Underhill for Frederick Forrest Peabody in 1914. Spanning 22,000 square feet, its interior includes everything from a theater and beauty salon to a wine room and Gatsby-like entertainment spaces. Rooms are fitted with the finest historic details like pre-WWII beamed ceilings in the kitchen and an 18th-century French limestone fireplace in the master bedroom. Every living space opens out to a series of terraces and loggias overlooking the Montecito Valley, Pacific Ocean, and Santa Ynez mountains. The exterior is just as grand. Offering 11.2 knoll-top acres, the property consists of a statuary, pond, swimming pool, and a 500-rosebush botanical garden.

Mono Cabin

The Mono Cabin isn't just easy on the eyes, it's also easy to obtain. The tiny prefab shelter sits on a steel base so there's no need for a foundation. At 106 square feet, it doesn't require any prior permits or planning allowing you to simply "Plug and Play". This minimalist philosophy also carries over into the aesthetics. The gabled exterior is clad in a sturdy standing-seam metal facade. Its birch-lined interior features vaulted ceilings and a wide-open layout giving you the freedom to customize it with lofts, desks, benches, and cabinets. Available in three variations, standard models come with electric heat but optional solar panels and a wood stove offer an off-grid alternative.

Photos: Drop Structures

Go Kart Track House

If you've never had a desire to live in Ireland, you might want to reconsider. A home in the Moneymore region just went on the market and it comes complete with its own go-kart track. The 1,100-yard course offers 10 turns, a race control office, and podium as well as workshops and garages to keep your karts race ready. A helipad, indoor swimming pool, and cinema complete the adult playground. There's also a residence on the property. The two-story home features four bedrooms and five baths with sweeping views of the surrounding countryside. The entire estate is all set within 28 sprawling acres.

Photos: Stanley Best Estate Agents

Beverly Hills Mountaintop

Overlooking all of Southern California, the Beverly Hills Mountaintop is aiming to set real estate history. Not because of its 157-acre size or that it's the highest point in 90210, but because of the price tag that comes along with it. The undeveloped parcel's billion dollar asking price makes it the most expensive listing in Los Angeles history. But with views spanning across downtown LA and all the way to Malibu on one side and glimpses of the San Gabriel Mountains on the other, it'll be worth every single one of those 100,000,000,000 pennies.

Photos: Beth Coller / Matthew Momberger

Tommy Hilfiger's Greenwich Mansion

Formally known as Applewood Estate, Tommy Hilfiger's Greenwich Mansion is fit for fashion royalty. The 10,000-square-foot colonial sits on a 4.6-acre property surrounded by bucolic stone walls. A gated entry leads to a cobblestone courtyard at the front of the grand estate. Inside, the family room, living room, dining area, and library are organized around a chef's kitchen while seven bedrooms and seven-and-a-half bathrooms are spread throughout the three floors. Towering ceiling heights make way for expansive floor-to-ceiling windows offering views of the landscaped grounds. Much of the interior is afforded access to the outdoors through French doors opening out to a poolside terrace and an upper-level balcony. The property also includes a movie theater, a tennis court, recording studio, and a three-car garage.

Artist Bothy

The Bothy Project was conceived as an outlet for creatives looking for inspiration in the remote corners of Scotland. With the introduction of the Artist Bothy, you can now find that artistic outlet in a landscape of your choice. The prefabricated cabin is modeled after its predecessors — a modest mountain hut clad in corrugated metal and locally-sourced Scottish larch. Its timber-lined interior is just 132-square-feet and includes a sleeping loft. The remainder of the space is left open but can include additional items like a kitchenette, shelving, benches, and a wood-burning stove to create the ultimate retreat. While its designed to be completely off-grid, there are options for water and electricity hookups.

West Hollywood Edition Penthouse

Sitting on top of a 190-room hotel, the West Hollywood Edition Penthouse is the crown jewel of the complex. The four-bedroom residence is made up of 6,415 square feet fitted with an excess of custom details like teak millwork, cabinetry, hardware and lighting all designed by architect John Pawson. A healthy dose of glazing affords nearly the entire interior with panoramic views of the surrounding cityscape. On the other side of the glass panels, expansive outdoor terraces overlooking the Sunset Strip allow homeowners to take advantage of the California climate. Residents-only perks include a rooftop pool and private lobby while they can also have full access to the hotel's amenities including the spa, gym, concierge, and an additional rooftop pool.

Bergen Street Townhouse

With its Park Slope location and gut renovation, the Bergen Street Townhouse is a Brownstone for the modern Brooklynite. The entire parlor floor has been opened up to house an expansive kitchen and main living area. A wall of steel windows floods the space with natural light while also opening to the bluestone garden terrace. The third level houses the master suite fitted with a massive walk-in closet, soaking tub, and walk-in shower. An additional three bedrooms and a den can be found on the fourth floor along with a full bath. Along with the main house, the garden level offers a two-bedroom apartment with its own landscaped patio. Although the home has been completely remodeled, architectural details like original marble fireplaces and carved millwork have been thoughtfully restored to preserve the building's historic charm.

Photos: Brown Harris Stevens

Little Pipe Cay

Exuma is made up of 365 small islands and now you can own one of them. Accessed by boat or seaplane, Little Pipe Cay is a private oasis spanning 38 acres. Within its white-sand borders are five houses with a combined 9 bedrooms and 9 baths. Each colonial-style villa offers expansive terraces with their own ocean views and private beaches. The property also includes staff accommodations, 24-hour security, storage for sea toys, and a dock to park your yacht. Aside from being featured in both the Pirates of the Caribbean and James Bond franchises, the Bahamian archipelago is also famously home of the swimming pigs which are located on Big Major Cay, just two miles away.

Photos: Knight Frank

Finca Rio Oro

Known for its extreme biodiversity, Costa Rica's Osa Peninsula is home to 700 species of trees, 463 species of birds, 140 mammals and 25 species of dolphins and whales. A slice of this nature haven is up for grabs in the form of the 3,300-acre ranch Finca Rio Oro. The property includes expansive rainforests and pastures that are home to the highest concentration of jaguars in the country and the largest population scarlet macaws on the globe. While the land borders the region's biggest freshwater lagoon, it offers a mile-long stretch of pristine beachfront, as well as waterfalls, freshwater springs, creeks, and a river.

Photos: Hall & Hall

Frank Lloyd Wright's Ennis House

Frank Lloyd Wright is an architectural legend but his Ennis House is almost as famous as its maker. Located in Los Angeles' Los Feliz neighborhood, the Mayan-inspired home is one in a series of textile block designs created by the architect around northern LA. The property has made appearances in dozens of films like Blade Runner, House on Haunted Hill, and the television series Twin Peaks ultimately earning it a spot on the National Register of Historic Places. Since being built in 1924, the structure has undergone a complete $17 million restoration helmed by billionaire owner Ron Burkle, polishing up its temple-like facade and adorning its fully-furnished interior with marble floors, concrete columns, wood beam ceilings, and intricate stained glass windows. Around the exterior, you'll find multiple decks and a poolside terrace that overlooks all of downtown with views reaching the Pacific Ocean.

Photos: Mary E Nichols / Hilton & Hyland

Ackergill Tower

Live out your complete childhood fantasy with this two-for-one deal. When you purchase the Ackergill Tower, not only will you gain a 15th-century castle, but you'll also become the owner of Europe's largest treehouse. It sits on 30 acres along the coast of Sinclair Bay in the United Kingdom. The original tower was first built in 1475 but received a large addition in the 19th-century before its complete renovation in the 1980s. The building still maintains its historic details, offering 32 bedrooms as well as 10 receptions rooms for events. Along with the aforementioned treehouse, the deal also includes a Victorian walled garden, six cottages, and your own personal pub.

Stack Rock Fort

Sited on a small island off the coast of Pembrokeshire, Stack Rock Fort has all the making of a personal fortress. The former military outpost was built between 1850 and 1852 and has been left completely untouched since 1859. Although it's been abandoned and neglected, its ancient bones have major potential. The three-story interior is filled with historic detailing like vaulted brick ceilings, original spiral staircases, arched doorways, and expansive seaward views. It's all organized around a central courtyard that with a little TLC, could be the crowning feature. The property occupies the entire island, meaning your only neighbors are all a boat ride away.

Photos: Purple Bricks

Dune Road House

Wedged between Mecox Bay and the Atlantic Ocean, the Dune Road House brings clean lines and modern luxury to the Bridgehampton coastline. The home stands four stories tall with elevator access throughout. Its bottom level can store up to four cars and offers an electric car charging station. Above, the first floor houses five en-suite bedrooms including the master with his and her bathrooms, dressing rooms, and a private terrace. Located on the second level, the main living area features a 50-foot glass wall that opens out to an expansive 1,000 square-foot terrace overlooking the bay. The main attraction is the rooftop deck. Equipped with a custom pool, outdoor kitchen, and firepit, the open-air space affords 360-degree views of the dual waterfronts.

Photos: Bespoke Real Estate

California Ghost Town

Get started on your own Westworld with Cerro Gordo. Spanning over 300 acres, this Lone Pine Ghost Town dates back to the 19th century. Almost 22 buildings still remain, including a hotel, bunkhouse, church and several family homes all backed by the Sierra Mountains. The property also serves as a mining operation and all of the mineral rights come along with it. Humanoid hosts not included.

Photos: Realtor Jake Rasmuson

Smith House

Designed by Craig Ellwood in 1958, the Smith House is a modernist icon. In its prime, the home was featured in multiple publications including Architectural Review. Today, the steel post and beam home has been meticulously restored by architect James Tyler. Its two wings form a T-shape with the two bedrooms running parallel with the property and the main living area extending out over the Los Angeles hillside. Inside, red brick, wood paneling, and floor-to-ceiling windows give the interior an authentic mid-century vibe. Between the glazed facade and the 530 square feet of decking, views of the Santa Monica Bay are always on display.

Photos: Deasy/Penner

Haddock House

The Haddock House was designed by Frank Lloyd Wright in 1938 but it was almost 40 years before the home was finally realized. Although it was built after the architect's death, the construction and location were overseen by Wright's firm Taliesin Associated Architects. The residence has flown under the radar for privacy reasons but has recently come out of hiding to go on the market for the first time. Like most of the icon's work, the Usonian-style home harmoniously sits on a 10-acre property in Ann Arbor, surrounded by an old-growth forest. Its two bedroom interior is a mixture of rich woods and brick offering double-height ceilings, expansive glazing, intricate cutouts, and two fireplaces. Around the exterior, you'll find a workshop, gated drive, and a terrace overlooking Honey Creek.

Photos: The Barrett Group

iOhouse Space

Put down your roots over and over again with the iOhouse Space. The self-contained, off-grid home allows you to live wherever you want and when you're done, just pick up and move. All of the utilities like water, electricity, heating, and wifi are already integrated into the home and are controlled by your smartphone or tablet. Just because they upped the sustainability factor doesn't mean they skimped on design. The interior is constructed from a contemporary mix of wood, metal, glass, and wool and comes complete with kitchen and living room furniture, bedroom furnishings, and bathroom fittings. All you'll need is the perfect location.