Phnom Penh, the capital of Cambodia, is a city where history, culture, and riverside life intersect. Situated at the confluence of the Mekong and Tonle Sap rivers, the city has a lively riverfront that serves as both a social gathering place and a hub for commerce.

Perched on the northern shore of Lake Geneva, Lausanne is a city that blends centuries of history with a strong cultural identity. It served as a Roman military camp called Lousanna before evolving into a key medieval settlement. Today, visitors can still climb the tower of Lausanne Cathedral, widely regarded as the most impressive Gothic structure in Switzerland. From the top, the view stretches over the rooftops of the Old Town to the vineyards of Lavaux and across the lake to the French Alps.

The Port of Stavanger is a popular stop on the route to the Norwegian Fjords, and boasts a first-rate assortment of museums and cultural events. Old Stavanger has Europe’s best preserved wooden house settlement.

Zagreb, the vibrant capital of Croatia, is a city where history, culture, and a youthful spirit collide in an unforgettable way. Wander through the cobblestone streets of the Upper Town (Gornji Grad) and marvel at its medieval architecture, such as the iconic St. Mark's Church, known for its colorful tiled roof depicting the coat of arms of Zagreb and the Kingdom of Croatia.

Seven miles outside of historic Athens, the Greek coastal city of Piraeus lies upon the sparkling waters of the Aegean Sea and is the largest passenger port in Europe, servicing nearly 20 million passengers per year.