Plane House, Costa Rica
This is one of the coolest ways we can think of to give new life to an old airplane.
Round Residence, Brazil
Sculpted from cement and iron, the 32-foot-tall house known as the Sphere has three stories and a rope swing attached to the outside.
Tower House, India
The 27-story skyscraper—built as a private home for a family of five—boasts a spa, ballroom, movie theater, and yoga studio.
Underground Dwelling, Switzerland
Designed to save energy, the seven-room eco-friendly home is covered with grass and earth.
Hobbit Home, Wales
The grass-covered dwelling was made from scrap wood, twisty tree limbs, and plaster. Inside, floor-to-ceiling tree trunks hold up the roof.
Nautilus House, Mexico
A seashell was the inspiration for this house.
Bubble House, France
Feel like you're living in a bubble? With this house, you're living in lots of them! Bonus: a panoramic view of the Mediterranean Sea.
Toilet House, South Korea
The bathroom of this toilet-shaped house may have glass walls, but don’t worry. If you want privacy, just push a button, and the walls cloud up. The builder of this home must be flushed with pride.
Photo credits: Plane house, Ralf-Finn Hestoft, CORBIS; hobbit house: Simon Dale, ZUMAPRESS/Newscom; tower: REUTERS, Danish Siddiqui; round residence: Eduardo Longo; underground dwelling: Peter Vetsch, AG; bubble house: PHOTOPQR, NICE MATIN/Newscom; nautilus house: Jaime Jacott, REX USA; toilet house: AP, Ahn Young-joon