Cusco once served as the heart of the Inca Empire, and that legacy still shapes every corner of the city even as it serves as a gateway to Machu Picchu. Outside the historic center, the ruins of Sacsayhuamán overlook the city from a nearby hilltop. This ceremonial complex is best known for its massive zigzag stone walls, some weighing over 100 tons. During the Inti Raymi festival in June, thousands gather here to reenact ancient Andean rituals.

Set on the Adriatic Sea, Zadar, Croatia, is a major Dalmatia historical center and a tourism magnet. Walk ancient streets, see Roman ruins and enjoy white-sand beaches.

One of Turkey's popular holiday vacation spots, Antalya is an engaging city. The region is immersed in sunshine for 300 days of the year, making it a hot spot for sunbathing, swimming and activities like wind-surfing, water-skiing, sailing, mountain climbing and caving.

Argentina shares half of this island territory in the South Atlantic Ocean with Chile. It's a place of oil derricks, sheep, glaciers, wind and waterways. Ushuaia and Río Grande are the two main towns; awesome scenery, wild walks and fishing are the island's main attractions. Argentina's only coastal national park comprises rivers, lakes, forests and glaciers, with great trekking and wildlife-spotting opportunities.

Erfoud, a desert town in eastern Morocco, is often seen as the last stop before the endless dunes of the Sahara begin. But this oasis holds more than just a convenient location. Known as the "Gateway to the Desert," Erfoud is steeped in history that predates the modern borders of Morocco. It was once a French colonial outpost, and today, its dusty streets and adobe buildings offer a glimpse into a slower, older way of life that still shapes the region’s identity.