This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

A forgotten underground railway once whooshed trams beneath London.

You can still see bits of the camouflage used to hide this Art Deco building from bombers during World War II.

A masterpiece of Art Deco architecture hidden in plain sight in West London.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

Pop culture has helped to keep this iconic British building from being destroyed.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Hear the quietest sound from across the dome.

Japan's first train station is also the site of Godzilla's first destructive visit to the nation.

This monument celebrates this shopping district's past history as a feudal silver mint.

The decommissioned steam engine’s whistle can still be heard three times a day at one of Japan’s oldest train stations.

The 10,000 Torii shrine.

This 700-year-old street food market features baby octopus and soy donuts.

Eighty million natural history specimens call this gargantuan museum home.

Curious onlookers have suspected this strange structure is a secret government base.