Set at the meeting point of Brazil and Argentina, Foz do Iguaçu is defined by the sheer scale of the Iguaçu Falls. Nearly 275 individual waterfalls stretch across close to three kilometers, sending mist into the air and sound echoing through the surrounding forest. Visitors follow raised walkways that bring them face to face with this moving wall of water, culminating at the dramatic Devil’s Throat, a deep, curved drop where the river seems to vanish into the earth.

Red Sea beaches, world-class snorkeling and spectacular desert environments are all reasons to visit the port city of Aqaba, Jordan. Take a quick walk from the city's lovely waterfront promenade and behold its Old Town, which features the 14th century Mamluk Fort and the Aqaba Archaeological Museum.

The dazzling capital of the Czech Republic, the explorable Prague has fittingly been nicknamed "the City of a Hundred Spires." Halved by the Vltava River and notable for architecture Baroque, Renaissance, and Gothic, visitors will find much to take in here.

Krabi, located on the southwest coast of Thailand, is known for its towering limestone cliffs, warm Andaman waters, and a coastline dotted with over 150 islands. One of its most iconic sites is Railay Beach, which is accessible only by boat due to the cliffs that cut it off from the mainland. Railay is famous among rock climbers for its natural limestone formations, some of which hang directly over the sea.

Londonderry, often called Derry, is a city steeped in history and charm, uniquely surrounded by remarkably well-preserved 17th-century walls. In fact, it holds the title of being the only completely walled city in all of Ireland. Strolling along these ancient ramparts offers visitors not only a glimpse into the past but also breathtaking panoramic views of the winding River Foyle and the lively streets below.