Macabre astrological automaton clock dating to the late 1400s.

Home to items never before seen by the public.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

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

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

The world's longest known cave system.

The curiosities and wonders of pharmacy in a delightful historic building.

Tiki luxury on Nob Hill.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The trials and tribulations of marking Poe's grave.

An ethereal glowing blue ocean cave in Croatia.

The second oldest continuously operating bar in Louisiana.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Where manatees are the snowbird vacationers in these balmy Florida springs.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

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

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

When ecosystems collide in the arid Southwest.