New York real estate isn't known for its space. This West 76th Street Townhouse is one of the few exceptions, which explains why it's currently the most expensive house on the Upper West Side. Spread over seven stories, the property offers over 11,300 square feet of living space that consists of six bedrooms, six bathrooms, a parlor, kitchen, and den. There's also 2,600 square feet of outdoor space, including a rooftop terrace with an outdoor kitchen. The pièce de résistance is in the cellar level. The double-height space features a private basketball court, along with an arcade room, wine cellar, and fitness studio. Located on the coveted Central Park block, the residence can be distinguished by a custom copper bay window.