This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

A remarkably intact castle that once was the largest in Ireland.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

The remains of a Canadian train crash are now mouldering beneath layers of rust and graffiti.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

This haunting stone chasm is a hotbed of mossy rock and English legend.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

This tiny Vietnamese village is known for eating snakes and serving their still-beating hearts in shots of vodka.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

According to the locals, the sands of this secluded Norway beach are infused with gemstone particles.

One of Frank Lloyd Wright's final works was this UFO church.

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

This replica Viking village was created for a film that was never shot and is now open to visitors.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

This remote eatery and museum is preserved as a time capsule of a small Icelandic fishing town.

This Minnesota town celebrated the state's 100-year anniversary by creating a massive ode to nature's smartest bird.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

This remote Himalayan temple is in danger of being completely washed away by a melting glacier.

Even after the church tried to wipe the practice out, this pagan festival lives on each year in a small Scottish village.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.