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.

A favorite for many cruise-goers and tourists, Ketchikan, Alaska, is a charming city located near the state’s southeastern edge.

Monterey, California, is a coastal gem with a rich maritime history and stunning natural beauty. Located on the rugged Pacific coastline, this charming city is renowned for its world-class aquarium, the Monterey Bay Aquarium, which offers visitors a chance to explore the vibrant marine life of the region. Monterey's historic Cannery Row, once the center of the sardine-packing industry, has been transformed into a lively waterfront area brimming with shops, restaurants, and cultural attractions.

Antigua is a city shaped by centuries of artistry, tradition, and natural forces. Set in a highland valley and surrounded by volcanoes, its streets are lined with colorful buildings, hidden courtyards, and open-air plazas. The Santa Catalina Arch is one of Antigua’s most recognizable features, originally built as a passage between two sections of a convent. Today, it frames a dramatic view of Volcán de Agua and is a popular gathering spot for both locals and visitors.

Located in Greece's Lesser Cyclades, Naxos is an island in the South Aegean Sea and popular for its spectacular beaches. A favorite tourist destination, Naxos is home to a variety of ancient ruins, including the Temple of Apollo - Grotta, the Temple of Demeter, and Apano Kastro.