This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

Hear the quietest sound from across the dome.

This coffee shop lies hidden beneath a historic church.

Hidden beneath the streets of London is a secret subway that only carried mail.

Eighty million natural history specimens call this gargantuan museum home.

Old Tudor home moved on thick iron rails to a new spot.

The once-a-day siren is a reminder of the days before time was standardized.

This magnificent mural was created with over 30,000 colored bricks.

Cemetery established by the Victorians as a solution to the overflowing graveyards.

The notorious "Hanoi Hilton" where Vietnamese colonial subjects and later American POWs, including John McCain, were imprisoned.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

Winner of the Leeds Award for Architecture and the Environment.

The name of this suspended sculpture is Latin for "high horse," which is exactly what it is.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

The castle still holds traces of the abandoned Roman fort it was built atop.

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

This ancient Egyptian obelisk still bears the wounds of World War I.

Ship-sized kinetic sculptural fantasy.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

London's smallest police station is barely the size of a phone booth.