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.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.

The city of Santa Cruz De Tenerife, located on the island of Tenerife, is a favorite stop for Transatlantic voyagers. Tenerife is both the largest and most populated of the seven Canary Islands and of Spain itself. As the island's main city, Santa Cruz De Tenerife is home to almost half of the island's population.

Guanacaste is a province on the western coast of Costa Rica in Central America. A biodiverse paradise, this region is popular for its tropical rainforests, beaches, and a variety of adventurous activities, including ziplining and snorkeling.

Nestled in the heart of Tuscany, Volterra offers a captivating journey through time with its well-preserved medieval charm and Etruscan roots. The city's history is evident as you wander through its narrow, winding streets, flanked by ancient walls that date back to the Etruscan period. The Roman Theater, built in the 1st century AD, is a testament to the city's significance in antiquity and provides an evocative glimpse into Volterra’s storied past.