Key Biscayne is a tropical island paradise located just six miles off the coast of Miami. This world-class resort community is a place where you can lie back in a hammock and listen to the rustle of palm fronds in the ocean breeze or stroll along the calm sandy Atlantic shore.

Hot Springs, Arkansas has been drawing visitors for centuries, and it all starts with the water. The city sits atop a natural thermal spring system that produces nearly a million gallons of 143-degree water each day. These springs gave rise to Bathhouse Row, a stretch of eight historic bathhouses within Hot Springs National Park. Some, like the Fordyce Bathhouse, now serve as museums, while others still offer traditional thermal soaks.

Mist, research stations, and penguins are just a few of the things that define the South Shetland Islands, an archipelago off the coast of Antarctica. These 11 Antarctic islands, most notably King George Island, have served as a base for researchers from Chile, Argentina, and a variety of other countries. The archipelago has also become a popular cruise destination for tourists to the Antarctic region.

Nestled in the foothills of the Black Forest, Baden-Baden is Germany's ultimate spa destination, famous for its luxurious thermal baths and charming Belle Époque architecture. This elegant town, whose name literally translates to "Baths of Baden," has attracted visitors seeking relaxation and rejuvenation for centuries.

Tahiti is a veritable paradise in the South Pacific. The largest and most populous island of French Polynesia's Society Islands, Tahiti is known for its iconic overwater bungalows, crystal-clear cerulean water, and lush, tropical rainforests.