Iguassu Falls, straddling the border between Brazil and Argentina, is a breathtaking natural wonder that captivates visitors with its sheer scale and beauty. This UNESCO World Heritage Site boasts the largest waterfall system in the world, with nearly 275 individual falls cascading over a rugged landscape.

The Tikal National Park, 370 square kilometers is part of the even larger Maya Biosphere Reserve. Home of hundred of species, including spider monkeys, toucans and parakeets. Towering above the rainforest are the ruins of Tikal, one of the most magnificent of all the Maya sites.

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.

One of San Cristobal Island's most popular visitor sites is Cerro Brujo, with its expansive white sand beach and a lagoon that locals once used as a salt mine but now offers excellent snorkeling opportunities. Another must-see is Kicker Rock, a fascinating rock formation that looks like a boot from one angle (hence its English name) and like a sleeping lion from another (thus its Spanish name, Roca León Dormido).

Písek, a picturesque city in the South Bohemian Region of the Czech Republic, is a hidden gem steeped in history and charm. One of its most notable landmarks is the Písek Stone Bridge, the oldest preserved bridge in the country. Built in the 13th century, this Gothic bridge spans the Otava River and is a testament to medieval engineering.