Mongolia is one of the few nomadic cultures left in the world, true cowboy country, so there's an exotic logic to seeing it by horseback. At least that's the reasoning behind the 15-day trek by Nomadic Expeditions, a company specializing in far-flung trips. They offer a different sort of luxury: You don't sweat the logistics or schlep your own bag, but you stay mostly in yurts and tents, falling asleep under Mongolian skies. Nomadic Expeditions also goes to other rugged places in that neck of the world: the Gobi Desert, central China, and Siberia, which we hear is beautiful this time of year.

For more information, go to nomadicexpeditions.com.