“Adventure In Mongolia”

16 days, 15 nights, June 18-July 3 & Aug. 27-Sept. 11, 2014. Highlights: In Ulaanbaatar, 19th-century Gandan Monastery, dinosaur skeletons and eggs at Natural History Museum/in Gobi Desert, Eagle Valley/desert ger camps/at Khongoryn Els, ride Bactrian camels to 2,600-foot-high “singing” sand dunes/in Bayanzag, Flaming Cliffs/Khögnö Khan Uul Nature Reserve/ruins of ancient Mongol capital of Karakorum/Erdene Zuu, possibly the country’s oldest-surviving Buddhist monastery. Land, $5,495-$5,895 per person, double. Single, $6,290-$6,690.

Smithsonian Journeys (Washington, DC; 855/330-1542).