Huge hole looks down onto an underground beach populated with sea lions.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Baroque celebration of the end of the Great Plague of Vienna.

The former private quarters and office of Dr. Sigmund Freud now hosts a museum housing the works of the founding father of psychoanalysis.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

These barriers stand as stark reminders of Northern Ireland's troubled past.

One of Ireland's most infamous prisons for rebels including men, women and children.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

There's nothing creepier than a cemetery next to a clown motel.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

In the middle of a remote desert town is a surprisingly opulent hotel.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

Not quite the menace it once was, this monster still has some chops.

A museum dedicated to a sea that should have never been.

The ghostly remains of an accidental sea.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

NASA's leading space science lab started by a co-founder with deep ties to the occult.

The world's second largest single-dish radio telescope, once used to contact E.T.