Pamukkale is a fairyland of dazzling white, petrified castles. It is a magical and spectacular natural site, unique in the world. Thermal spring waters laden with calcareous salts running off the plateau's edge, have created this fantastic formation of stalactites, cataracts and basins.

Nature is never far in Helsinki. Locals swim in the sea, walk forested trails, and gather mushrooms or berries all within city limits. One popular local habit is heading to the sauna, and the city offers several open-to-the-public options. Löyly, located on the waterfront, combines traditional wood-burning saunas with a sleek, modern design. In winter, visitors can even pair a sauna session with a quick dip through a hole cut in the ice for an experience both shocking and strangely calming.

Located off the southern coast of Chile, Cape Horn is a coastal headland on Isla Hornos, the southernmost island in the Tierra del Fuego archipelago. The Cape Horn Monument provides a spectacular panoramic view of the Pacific and Atlantic Oceans. This rocky cliffside is a popular stop for Antarctic and South American cruises.

Located south of San Francisco, California, this area is known as the "Silicon Valley" because of the concentration of computer companies. It is also home to Great American amusement park.

This cultural capital and university city holds more than 2,000 years of history and is the cultural hub of Germany. Marvel at the gorgeous twin-spired Cologne Cathedral, known for its gilded medieval reliquary and sweeping river views, or lose yourself in one of Colonge's many museums for a few hours. Cologne boasts of having most pubs per person in Germany, so make sure you sit down for a refreshing regional Kölsch beer during your travels!