Check out some of the worlds coolest buildings on top of buildings

New York City, New York

Check out this modern, three-story luxury home on top of an old apartment building in New York City.

Mall Rooftop, Hunan, China

These houses serve as offices for a real estate management company at Jiutian International Square in Zhuzhou, Hunan Province, China.

Hunan Province, China

Here's a whole neighborhood on top of a building in China.