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

Curios, scientific antiques, oddities for sale.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

Remarkably realistic Florida shoal bass "swim" inside this large globoid sculpture.

A mega theme park-wax museum mélange containing all things biblical.

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

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Electrical pylon in the shape of Disney's beloved mouse.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A haunted hill that supposedly defied gravity.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

A lush indoor jungle fills this bustling Madrid transportation hub.

A Spanish town built into the cliffs.

Single runway interrupted by a busy road that cuts across its middle.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This surreal-looking tree pruned more than 1,000 years ago is still producing olives for oil.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

The buildings are among the few Frank Lloyd Wright structures still standing in Japan.

This spectacular track has run continuously since 1882.