Amazing Treehouse Homes

Treehouses can no longer be seen as just child's play. While they still do serve as playhouses for the more fortunate kids, they've taken on new functions as private home offices or studios, as elevated guest quarters, and as hotel accommodations, as well. Some are even real houses that just happen to be located in trees.

Modern treehouses are also typically quite eco-friendly. They have traditionally been built using salvaged materials, and now designers and builders have taken it further with energy-efficient features, such as composting toilets, or utilizing solar panels and fuel-cell power.

Check out this slideshow for more photos of jaw-dropping treehouse homes.