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.

Lucca, a Tuscan city surrounded by remarkably intact Renaissance walls, offers more than just postcard views. Known for its quiet streets and grand piazzas, Lucca stands apart with its circular street layout, still following the lines of a Roman amphitheater from centuries ago. The walls, now repurposed as a 4-kilometer tree-lined park, are a favorite route for locals and visitors who explore them on foot or by bike, passing old bastions and panoramic viewpoints along the way.

Trinidad, Cuba, is a mesmerizing time capsule that transports visitors to another era with its cobblestone streets, pastel-colored colonial buildings, and horse-drawn carts. Founded in 1514 by Spanish conquistador Diego Velázquez de Cuéllar, this city, located in central Cuba, is one of the best-preserved colonial towns in the Caribbean. Trinidad's rich history and enchanting architecture make it an essential destination for anyone seeking an authentic Cuban experience.

Paro, Bhutan, is a serene valley town that offers a gateway to the mystical charm of the Land of the Thunder Dragon. Nestled amidst verdant hills and bisected by the glistening Paro Chhu river, Paro is home to some of Bhutan’s most iconic landmarks and cultural treasures. At the heart of this picturesque valley stands the majestic Paro Dzong, or Rinpung Dzong, a fortress-monastery with a history dating back to the 17th century.

Washington, D.C., the vibrant capital of the United States, offers a perfect blend of history, politics, and culture that makes it a must-visit destination for travelers. Known for its iconic landmarks, such as the Lincoln Memorial, the Washington Monument, and the U.S. Capitol, D.C. offers endless opportunities to explore the country’s history through its architecture and museums.