This abandoned secret city is a crumbling wonderland of Soviet ruins.

Once thought to be the mysterious work of a witchy prophetess, a well with unusual properties turns objects into "stone".

This bone-filled cave got its name after they found 140 bear skeletons inside.

This protected area in Lake Huron contains some of the world’s best-preserved shipwrecks.

A sparkling sandstone cliffside that's worth a visit while it still exists.

One man’s vision of living among dinosaurs credits Jesus Christ as the engine of biological evolution.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

A cemetery and the town it served sinks beneath the sea during the volcanic birth of Mt. Vulcan.

This tiny island protects a number of rare bird species by only allowing visitors to set foot on the beach.

A sprawling nature preserve harbors the world's only living dragons.

A real-life "hobbit" cave in Flores, Indonesia.

Visitors can swim with vicious predators in Crocosaurus Cove's plastic daredevil enclosure.

Three wildly colorful calderas top this otherworldly volcano chain.

A once great mansion stands in stately ruin.

Where cemeteries are carved into the side of cliffs and infants are buried in the hollows of trees.

A magically clear, blue river that seems to spring from nowhere.

Bohol's mysterious brown hills.

A patch of Philippines forest devoted to saving the lives of an emotionally sensitive species of googly-eyed primates.

An isolated dive site teeming with cnidarians.

This crocodile-infested East Timor reservoir is also home to a spectacular half-sunken forest.

A Japanese corporation has turned this small island town into living modern art gallery.

This high-design church is made up of two dizzying spirals meant to evoke the weaving together of marriage.

Japanese island famous for poison gas and fluffy bunnies.