A fiery crater has been burning in the Karakum Desert since 1971.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

A submerged archeological park still holds the wonders of a Roman Sodom.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The mayor made the declaration in 2004.

100 year tradition of fist fights, marked by marble footsteps.

The plague quarantine island home to the alleged "Vampire of Venice."

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

Row, row, row your pumpkin quickly down the stream.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

Largest man-made excavation on earth!

This ghost town was once a cult-like religious utopian settlement.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

The world's second-largest excavated hole.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

In the land of the Light Brigade stands a testament to the Cold War.

Formerly Yugoslavia's "forbidden island," this sleepy little city still holds the abandoned remains of military strongholds.

The “City of Stairs” sits high in the Andes, above the world’s largest underground copper mine.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.