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

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

This sublime architectural marvel is a rare example of an expressionist church.

Countless grotesque faces stare out from this eerie Prague art wall.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Two stunning 17th-century libraries and a cabinet of curiosities.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

Looming communist pillar with a Czech twist.

A mocking tribute to the past and modern leadership of Prague.

This artificial cave looks like something out of a fairytale.

Abandoned railway line circling the city of Paris.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Beyond being incredibly fun, not much can be said about the Hole with certitude.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The first declared National Monument in the United States.

Monasteries on rock pillars, once accessible only by frayed ropes.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

The world's only museum devoted to the wonders of fluorescence.