If you find yourself in Rotterdam, there's a strong chance you've arrived by water. This popular port city (the second largest in the Netherlands) has gone through an architectural renaissance since World War II, with daring, innovative structures dotting the city (cube houses!) and defining its skyline. Café culture is on the rise here, so grab yourself a table and a cup.

Home to a number of Hindu and Buddhist temples, beautiful botanical gardens, and ancient palaces, Kathmandu is the perfect place to immerse yourself in Nepali culture, history, and religion.

This small cruise port is located in Mexico's Yucatan peninsula south of Playa del Carmen, near Belize. It is famous for Chacchoben, a breathtaking set of Mayan ruins. The port has a new and modern shopping mall and the central plaza has saltwater pools and 'swim-up' style bars for tourists to enjoy.

A major port city on the River Scheldt, Antwerp, Belgium, is a cultural, historical, and commercial hub and the country's most populous city. Known as the "diamond capital of the world," Antwerp is renowned for its cut diamonds.

Visit the ancient city of Memphis and take in the wonders of the recumbent statue of Ramses II and the 80-ton Alabaster Sphinx.