The vast, legendary catacombs hold secrets much stranger than stacked bones.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

Artist Diego Morlin's war between the natural and human worlds is a wanderer's delight.

Windblown rock formations in an ancient Roman quarry.

These delicate sand pyramids look like naturally occurring gothic spires.

One of seven Jewish catacombs in Rome and one of only two open to the public.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

The location of the last witch trials of Italy, known as "The Salem of Europe."

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Natural cathedral designed by Italian artist Giuliano Mauri.

This 16th-century monastery has been turned into a surrealist architecture compound.

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