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

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

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

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

Artists and musicians now rule over this former rail station.

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

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

This coffee shop lies hidden beneath a historic church.

Hear the quietest sound from across the dome.

An incarceration museum on the spot of possibly the oldest prison in England.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A student driver's nightmare.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This Stonehenge-inspired solar calendar stands alongside a landfill, in the middle of the Nevada desert.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This 50-foot-deep sinkhole created in the 14th century is home to rare plants and fungi.