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.

A charming city nestled on the banks of the Rhine, Mainz, Germany lies southwest of Frankfurt and is replete with historic buildings and famous museums. The city's Altstadt district meets the river's edge and boasts a variety of beautiful and fascinating landmarks.

This quaint port city is breathtakingly beautiful! Surrounded by peaks, Seward fjords are the perfect whale and porpoise habitat, and both seals and puffins fill the Alaska SeaLife Center. Those looking for a challenge can hike the western trail to the summit of Mount Marathon.

Providenciales, often called “Provo,” is the most developed island in the Turks and Caicos archipelago and a gateway to some of the clearest waters in the Caribbean. Its coastline is famous for long stretches of white sand and shallow turquoise seas that seem to shift color with the sun. Grace Bay Beach, the island’s most celebrated shoreline, runs uninterrupted for more than 19 kilometers and is consistently ranked among the best beaches in the world.

The Darvaza Gas Crater, famously nicknamed the “Door to Hell,” is one of Turkmenistan’s most extraordinary landmarks. Located deep in the Karakum Desert, this fiery pit has been burning continuously since the early 1970s, when Soviet engineers reportedly set fire to a collapsed natural gas field to prevent the spread of methane.