The walls of the iconic dome are hollow and have a secret stairway.

The latest in a series of long glass bridges suspended at terrifying heights.

How would you like to dine in the same room where some of the Titanic's victims were embalmed?

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

A famous hotel houses an impression collection of mini dioramas and giant doll houses.

A blank headstone topped with a pile of pennies marks the final resting place of the infamous assassin.

Outdoor art exhibition made of classic Tetris pieces.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

Located on top of mines that run through Broken Hill.

A modest park memorial pays tribute to one of the Titanic's most revered storylines.

Twelve sculptures designed to make their best showing with the coming or going of the sun.

The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

Dilapidated ruins that once treated a notorious young serial killer, currently hosting vandals, squatters, and ghost hunters.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers.

The word 'wunderkammer' translates as 'wonder-chamber'. This Wunderkammer is both a museum and a retail store.

Occult books, tarot, oddities.

No one seems to know who suffered the disappointment at this particular place.

A preserved factory in the "Home of the Carrousel" is now a museum dedicated to the classic wooden ride.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

An Orwellian sculpture with eyeball cameras watches passersby.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.