5. Habitat Suites, Austin, TX
Habitat Suites is one of the few hotels on this list that uses solar panels. The hotel is also dedicated to preserving air quality through the use of live plants in the rooms, VOC paint, and non-toxic cleaning products. There are also edible gardens around the property, which use composting and natural pesticides and fertilizers. Water conservation and energy efficiency are also priorities, as is recycling. The pool is chlorine free and uses salt instead of chemicals.