The site of the climactic scene from the classic horror film is now a historic landmark.

Hundreds of hidden passageways weave through the old quarters of Lyon.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A stairway to heaven, or to nowhere at all.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Their motto is, "We've been bonkers for hats even longer than you have!"

This collection of French root art looks like an indoor fairy wonderland.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

This collection of grinning ephemera has grown from basement to Brooklyn.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

This 15th century pub is one of only two pubs in England situated on consecrated ground.

This tiny museum's sizable collection is jammed into a former underground public toilet.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.

A pair of 7-foot legs belonging to the military man of the Mayflower stand jauntily by the side of the road.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

The atmospheric road was never meant to be so creepy.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.