This Would Be a Cool Condo.

[sneerboy]

Cool, except for the falling leaves and branches...and squirrels. :)

hxxp://www.stefanoboeriarchitetti.net/?p=207 for more.

[mclovin]

Yup and you could call it Chia Condos :D

[Terryl]

And not to say what would happen if it rained too much, trees and dirt get real heavy when it they get saturated with water.

[chicot60]

Found another pic.

http://i.imgur.com/sKSnk.jpg