Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

Fonts are born and bred here at the oldest letterpress type foundry in the United States.

This iconic Peak District ridge was once one of the busiest roads in medieval Britain.

The remains of Crystal Palace Great Exhibition of 1851.

A curious urban windmill once owned by a renowned British mathematical physicist.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

An ancient quarry rediscovered by a dog and claimed by biblical kings, a German cult, and the Freemasons.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

A "miracle" that seems to produce more holy fistfights than holy revelations.

The only quarter of the Old City not dedicated to a major world religion.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Famously misunderstood wonder of the ancient world

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

A seaside town with no sea in sight.

A 15th-century former coaching inn forms the implausibly grand entrance to a 1980s shopping mall.

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

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

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 reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

France's national museum of scientific and industrial instruments.