The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

This unique temple complex remains off the typical tourist trail.

This bridge is haunted by the ghost of a distraught mother.

A 18th century graveyard and its astonishing cortege of macabre iconography.

The oldest stone house in Paris was built by its most famous alchemist.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

These curious caverns have been home to mushrooms, gangsters, and disco.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Rebuilt remains of a temple to Roman god Mithras.

An abandoned stretch of highway, deteriorating next to the operational one.

An abandoned saucer-shaped monument in the Bulgarian mountains.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

A huge musical instrument played by the ocean.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This might just be the TARDIS of bookstores.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Mysterious rocks that ring musically when struck.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

A massive sea stack famous for its appearance in The Goonies.