#10 Frozen to (Near) Death: Porvoo, Finland
Spas in European countries like Finland and Slovakia, where winters are long and cold, offer an Arctic-inspired treatment called cryotherapy. Here’s how it works: You enter a cryogenic chamber in which the temperature is typically set at around negative 184 degrees Fahrenheit. You can’t spend more than a few minutes inside the chamber, as too much time in such frigid temperatures will quickly cause hypothermia and death. What are the benefits of trapping yourself in a below-freezing icebox, you ask? Cryotherapy is said to remove toxins and strengthen the immune system. The Haikko Spa in Porvoo, Finland is a popular spot for travelers seeking the chill of cryotherapy treatments.