The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

San Francisco's newly reopened hands-on science museum.

Just outside the Ohio Supreme Court sits a testament to justice.

Known locally as "the giant head," this 14-foot LED sculpture has a photo booth in the neck where you can have a 3D picture taken and displayed.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

What looks like a normal building is really a hollow facade hiding a subway vent.

An unusual number plate signifies the building's saucy past.

A French artist's vague warning hangs over Belleville.

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

BDSM, 1930s Style.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

How did a French journalist’s grave become the sexiest statue in the cemetery?

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

France's most famous cemetery, with some of its most curious tombs.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A typical "Old South" manor, once owned by author Anne Rice, served as the setting for several of her witchcraft sagas.