This classic restaurant features a gorgeous mirror-clad room.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

Standing stones found on a construction site are re-erected.

The deepest metro station in the world.

One of the most poignant ruins of the Chornobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

This derelict superstructure was a very important warning system for the Soviet military.

This attraction was abandoned after the Chornobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

Secret North Korean passage discovered below the world's most dangerous border.

Khmer Rouge's high security prison.

5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

2300-year-old Roman road connecting the empire.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Swiss vineyards in a UNESCO heritage site.