The ancient Khmer cities of Angkor Wat and Angkor Thom surely contain some of the most stunning ancient architecture in the world. You can visit both sites while staying in the nearby city of Siem Reap at the Skyway Guesthouse. When not sightseeing, give back through Skyway’s volunteer program by helping to tutor children in English and computer skills or by assisting with administration work at a nearby orphanage. Plenty of other guesthouses and hostels are developing programs to allow visitors to volunteer during their stays. For example, Hostel Hoff at the base of Tanzania’s Mount Kilimanjaro helps connect travelers with programs to volunteer at local schools or teach HIV/AIDS awareness and prevention.

For more information: Skyway Guesthouse