In 1950, Mother Teresa founded the order of the Missionaries of Charity in Kolkata, India, which is dedicated to serving the city’s poorest citizens. A Nobel Peace Prize recipient, Mother Teresa died in 1997, but her order has continued her work. Volunteers from around the world, no matter their religious affiliation, are welcome to join in the effort. You attend an orientation (held Mondays, Wednesdays, and Fridays at 3 p.m.) in the Nirmala Shishu Bhavan home for children in Kolkata, and afterward a sister will assign you to a project. Possibilities include the Gandhi Welfare Center, where you might educate and feed young street children; or the Daya Dan home for mentally and physically disabled children, where you can provide support by playing with the kids. There is no time requirement or fee to volunteer. Participants must arrange their own lodging and meals in Kolkata.