An architectural oddity hides in plain sight on this iconic London bridge.

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

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

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

Charles Babbage's proto-computer, painstakingly brought to life.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

This hilarious English intersection is an automotive whirlpool.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.

A clock designed to run with perfect accuracy for 10,000 years.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

Manchester salvaged this sculpture of the adopted Mancunian when it was no longer wanted in Ukraine.

The oldest Roman lighthouse still in use.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

A tribute to the women who quietly kept the local steelworks alive during both world wars.

One of the last doorless, continuously moving elevators still in use in the U.K.

One English town's celebratory landmark spurred more trouble than anticipated.

Once upon a time these giant concrete tanks were used by local fishermen to clean their wild-caught mussels.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

Locals spent years successfully fighting to save this beloved Brutalist behemoth from demolition.

Be on the lookout for the symbolic insect all over the city.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.