Designed by Frank Lloyd Wright and completed in 1961, the Fawcett Ranch House (a cool $2.7 million) near Los Banos, California, is a 3,800 sq. foot piece of history. Sited on 8 acres of farmland in the San Joaquin Valley, this retro-amazing home features a concrete slab floor, mahogany walls, windows, doors, and cabinetry. It's got six bedrooms, four and a half baths, two fireplaces (including a walk-in living room fireplace), a Japanese garden with Koi pond and waterfall, and unbelievable views from every angle. Here's your chance to live in an actual work of art. [Thanks, Chuck]
Bat Cave, Man Cave — whatever you want to call it, this unique Missouri Cave Home ($300,000) is a superhero-worthy hangout. Boasting over 17,000 sq ft of space, this cavernous house is fully livable, with three bedrooms, a 400 sq ft kitchen, three groundwater springs, 2.8 acres of land, and a legendary stage — yes, stage — where bands such as the MC5, Ted Nugent, and Bob Seger have performed. Fringe benefit: Being able to answer "yes" when asked "Do you live in a cave?" "Why yes, yes I do."