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.

Ulm, Germany, a picturesque city on the banks of the Danube River, offers a rich tapestry of history and modern charm. Dominating its skyline is the Ulm Minster, home to the tallest church steeple in the world at 161.5 meters (530 feet). This Gothic masterpiece invites visitors to climb its 768 steps for a breathtaking panoramic view of the city and the surrounding countryside.

Visitors to this breathtaking and romantic Cyclades archipelago will gaze at the whitewashed cubiform houses sitting cliffside and hovering over the water.

Roma. The Eternal City. Whatever you call Rome, it stands alone as Italy's most visited destination. The third most populated city in the European Union, Rome boasts ancient sites, yet has a modern flair — an exhilarating mix of the Old World and the new.

Seen from the train, Durham presents a magnificent sight, with cathedral and castle perched atop a bluff enclosed by a loop of the River Wera, and linked to the suburbs by a series of sturdy bridges.

Warnemunde (or Warnemünde) is a port city in Germany and a frequent stop on many Northern European cruises. Across the Baltic Sea from Denmark's capital, Copenhagen, this charming seaside city has a number of delightful attractions, including the Warnemünde Lighthouse, a variety of local shops along the marina, and surfing lessons on the beach.