Size: 70 sq. ft.

Location: Poultney, Vermont

In a renewable energy and ecological design class at Green Mountain College, a group of students designed a stunning and creative mobile shelter that gives back to the Earth.

They called their home OTIS (Optimal Traveling Independent Space), a 70-square-foot, solar-powered dwelling made of all reclaimed materials. The home has a sleeping area, and the ability to collect and recycle rainwater.