1. LAUREN BUSH LAUREN CEO of FEED Projects

"The UNESCO World Heritage site of Angkor Wat in Siem Reap, Cambodia."

MC RECS

Budget: Try the Golden Temple Villa. (From $15; goldentemplevilla.com) Cushy: Splurge on the Raffles Grand Hotel d'Angkor. (From $296; raffles.com) Feel-Good:Build houses with Habitat for Humanity. ($1,750 for a 10-day trip; habitat.org/gv)

2. SARA BAREILLES Singer-songwriter

"Old churches and amazing, affordable meals in Bologna, Italy."

MC RECS

Budget: Book a room on Airbnb.com. (From $35) Cushy:Stay at the Grand Hotel Majestic "gi Baglioni." (From $250;grandhotelmajestic.duetorrihotels.com) Feel-Good:Help a small-scale farmer through WWOOF Italia. ($34 for a year's membership; wwoof.it)

3. NATASHA LYONNE Actress

"Volcanic hot springs and incredible skiing in Las Trancas, Chile."

MC RECS

Budget: Stay down the mountain at Cabañas Los Andes. (From $100; cabanaslosandes.com) Cushy:Ski-in/ski-out at the Gran Hotel. (From $191; termaschillan.cl) Feel-Good:Teach English in Santiago and hit the slopes at nearby Portillo. ($2,575 for two weeks; unitedplanet.org)

4. LIYA KEBEDE Founder of Lemlem

"Namibia, for the sand dunes, which change color with the sun."

MC RECS

Budget: Go for the Cardboard Box hostel in Windhoek. (From $33; cardboardbox.com.na) Cushy: Spring for the Wolwedans Dune Lodge in the Namib Desert. (From $300; wolwedans.com) Feel-Good: Help farmers and elephants cohabitate in Damaraland. ($1,295 for two weeks; desertelephant.org)

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