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.

This vibrant and picturesque city sits near the German border and is the 2nd most popular tourist city in France. Its historic city center is classified a World Heritage Site by UNESCO, and the Stasbourg Cathedral is one of the finest examples of Rayonnant Gothic architecture.

Portland, England, offers a charming blend of coastal beauty, historical intrigue, and unique geological features. Nestled on the Jurassic Coast in Dorset, this picturesque island town is renowned for its stunning cliffs and quarries.

Elephant Island, a remote outcrop off the coast of Antarctica, is not your average travel destination. Known for its dramatic cliffs, towering glaciers, and wild, ice-laced seas, this island is both stark and unforgettable. Located 245 kilometers northeast of the Antarctic Peninsula, Elephant Island is rarely visited except by specialized expedition cruises.

Le Havre is a captivating port city in Normandy, France where the English Channel meets the Seine River. Having evolved from a small fishing village into a bustling maritime hub, it is a blend of rich history, modern architecture, and stunning natural beauty. The city's historic roots are especially evident in landmarks such as the Graville Abbey, one of the oldest monuments in the area, and the impressive St. Joseph's Church, a modern architectural marvel designed by Auguste Perret.