This Florida sinkhole hides a rainforest-like micro-environment in its depths.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A church of bones, decorated with 40,000 human skeletons.

Version of the French Riviera destroyed by the sea.

A mysterious castle built as a monument to lost love.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

An unfinished rail tunnel that has since been used to house cheese and bats.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

A hand-built folk art installation covered with messages of God's love.

The second oldest continuously operating bar in Louisiana.

A museum and shop on Bourbon Street located in the French Quarter.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

A white Buddhist temple with a golden restroom.

Buried in the Laos jungle is a sanctuary for bears that would have otherwise been milked to death by poachers.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

This extensive collection of dead bugs may be the world's most idiosyncratic and personal insect museum.

A limestone wonderland of water and subterranean secrets.

Bangkok's men with dangerous jobs come here in search of protective talismans.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.