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.

The metropolitan center of southeastern France, vibrant Lyon abounds with stunning architectural masterpieces, gastronomic delights, and immersive museums. This spectacular city, founded by the Romans centuries ago, rivals Paris as a cultural and social hub for exploring the best that France has to offer.

Golubac is a gateway to the Iron Gates Gorge, a stretch of the Danube River that separates the Carpathian and Balkan mountains.

Halong Bay, located in northeastern Vietnam, is a stunning UNESCO World Heritage site known for its emerald waters and towering limestone islands. This natural wonder offers a variety of activities for visitors, including cruising, kayaking, snorkeling, and exploring extraordinary caves like the Sung Sot.

Its legacy as the former imperial capital of Vietnam is just one of many reasons to visit Hue.
For more than a century, the emperors of the Nguyen dynasty (1802-1945) ruled from the Forbidden Purple City, the innermost enclosure of the citadel. Today, this complex is designated as a UNESCO World Heritage site and draws millions of visitors each year.