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

The fences outside some of South London's estates are made from recycled World War II stretchers.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

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

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

The Bristol Camera Obscura housed in an ancient windmill.

England's steepest street has such a drastic incline that locals tie their parked cars to lampposts when it gets icy.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

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

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

A domino effect created with Britain’s iconic telephone boxes.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

The monster at the center of the Darwin Center Spirit Collection.

This home on a quiet suburban street is completely covered with vibrant mosaics.

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

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

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

A student driver's nightmare.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Eighty million natural history specimens call this gargantuan museum home.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.