Where: Kentucky, Arizona, and Washington
What: Global Citizens Network brings volunteers into some of the most beautiful but economically depressed areas of the country: Appalachia, the Navajo Nation reservation, and the Quileute reservation on Washington's Olympic Peninsula. Visitors take on such tasks as building fences, writing grant proposals, and planting gardens.
Duration: Eight days
Volunteers pay: $800, which covers meals and a sleeping area on the floor of a community center (GlobalCitizens.org)