Uxmal, located about 80 kilometers south of Mérida in the Puuc region of Yucatán, is one of the most architecturally refined ancient Maya cities. Unlike other major Maya sites built with steep pyramids and narrow passageways, Uxmal is known for its smooth limestone structures, wide plazas, and intricate stone mosaics. One unique experience available to visitors is the nightly light and sound show, which uses colored projections to highlight carvings and narrate local legends and Maya cosmology.

Originating as a tiny fishing village in 1038, modern Kehl has become an important link between Germany and France. Rhine River cruises most often use Kehl as their gateway to the much larger and better-known Strasbourg. The savvy traveler, though, might choose to skip the jaunt across the river and enjoy many similar sights, shopping and cuisine as those offered in the teeming French city.

Montenegro, set along the Adriatic Sea, draws travelers with its dramatic landscapes and layered history. The Bay of Kotor, often mistaken for a fjord, is actually a submerged river canyon surrounded by steep cliffs and medieval towns. Kotor itself, a UNESCO World Heritage site, is enclosed by ancient fortifications that visitors can climb for panoramic views stretching from terracotta rooftops to the sea.

Tromsø, a gem nestled in the Arctic Circle, offers an unparalleled blend of natural wonders and cultural richness. Known as the "Gateway to the Arctic," this Norwegian city is famed for its spectacular Northern Lights. Between September and April, Tromsø becomes a prime location for witnessing the aurora borealis, a mesmerizing display of green, purple, and pink lights dancing across the polar sky.

My Tho lies along the Tien River at the edge of Vietnam’s Mekong Delta, where waterways shape both movement and daily life.