Visit this playground of waterfalls, caves and sinkholes.

An emerald-green grotto just a short trip from Austin.

A perfect turquoise lake colored with glacier dust.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

Village situated on a narrow volcanic escarpment.

The only pollutant in the clear blue water is sunscreen.

Live a night as a Byzantine King, with a minibar and private jacuzzi.

One of the greatest maze designer’s greatest mazes.

Underwater restaurant at the coral reefs of Eilat.

Ming Dynasty necropolis raided during the Cultural Revolution.

Roman ruins, natural methane fires and a lovely beach.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

This naturally-sourced hot spring is now home to a clothing-optional resort.

This classic restaurant features a gorgeous mirror-clad room.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

Handcrafted thermal spa washes away each night with the tide.

At the foot of a waterfall lies a peaceful swimming lagoon and evidence of over 60,000 years of human habitation.

One of the deepest blue holes in the world.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Community owned and operated, this property is home to a diverse set of nudists.

Read a book next to a Midtown waterfall.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

An invitation-only museum of items natural and bizarre, arcane and exotic.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.