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.

Grenoble sits at the meeting point of three Alpine mountain ranges in southeastern France, giving it a setting that feels both dramatic and lived-in. With origins dating back to Roman times, the city has long been a crossroads of trade, science, and political thought.

A popular stop on river cruises down the Rhône, Tournon, France is a picturesque town south of Lyon. Despite its small size, this French ville is instantly charming. From historic buildings like the Château-Musée de Tournon and the Église Saint-Julien de Tournon, to the lush botanical splendor of the Jardin d’Eden, Tournon’s quaint beauty is guaranteed to enchant.

In the heart of Zambia lies Livingstone, a city that serves as the gateway to one of the most spectacular natural wonders in the world: Victoria Falls. This UNESCO World Heritage Site, often referred to as "The Smoke That Thunders," is renowned for its breathtakingly powerful waterfalls on the Zambezi River. The falls, which span over 1,700 meters wide and plunge 108 meters deep, offer a mesmerizing display of nature's might.

Capital of Martinique, a French overseas territory, Fort-de-France is a veritable island paradise replete with striking colonial architecture, exotic flora and fauna, verdant nature parks, and sparkling beaches. Highlights of this vibrant island capital include the colorful Jardin de Balata, the cascading Fontaine Didier waterfall, and the expansive Schoelcher Library.