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.

Hidden in the northern region of Costa Rica, the Celeste River (Río Celeste) winds through Tenorio Volcano National Park with a color so vivid it seems unreal. The river’s striking turquoise hue is caused by a natural chemical reaction between two mineral-rich streams, Quebrada Agria and Río Buena Vista, which merge at a point known as "El Teñidero." This one-of-a-kind phenomenon creates the illusion that the water has been dyed blue, even though no pigments are present.

Cat Ba, the largest island in Vietnam’s Halong Bay, is a striking mix of rugged limestone cliffs, hidden coves, and vibrant jungle. Long home to fishing communities, the island has retained its local charm while also becoming a gateway to the natural wonders of the surrounding bay.

Sainte-Rose, located on the eastern coast of Réunion, is a small town where the island’s volcanic character is on full display.

Mystic, Connecticut, is a small town with a big story, one shaped by shipbuilders, sea captains, and centuries of maritime tradition. Once a bustling shipbuilding center during the 18th and 19th centuries, Mystic still carries the soul of a working seaport. Today, visitors can explore its nautical past at the Mystic Seaport Museum, home to America’s last wooden whaleship, the *Charles W. Morgan*.