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.

Niagara Falls, New York, is home to one of the most powerful natural spectacles in North America. More than 3,000 tons of water pour over the edge every second, creating a thunderous roar and a rising mist that can be felt from blocks away. Visitors can stand just feet from the American Falls at Prospect Point or take the iconic Maid of the Mist boat tour, which has operated since 1846 and now features all-electric vessels.

This city in the Rhine Gorge is known for its winemaking, dramatic landscapes and 15-minute cable car ride to the Niederwald Monument (celebrating the German victory over France in 1871).

Located off the southwestern coast of Florida, Marco Island is a popular resort destination known for its boat-lined marinas and beautiful beaches, including Residents' Beach and Tigertail Beach. A variety of outdoor activities are at your disposal here, including paddle boarding, water skiing, kayaking, hiking, and golfing.

Exhilarating Rio de Janeiro, the vibrant South American destination and cultural capital, abounds with iconic landmarks, beaches, and attractions. Christ the Redeemer, the hundred-foot mosaic statue atop Corcovado Mountain, overlooks the glittering coastline and is instantly recognizable, having become an enduring symbol of the city itself. Its arms stretching wide, the prominent figure beckons you to explore this inviting locale.