This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

British Empire's last territorial expansion, claimed by four countries.

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

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

US-50 in Nevada is known as "the Loneliest Road in America," but this earlier iteration of the route is even lonelier.

This imprint of an old computer keyboard has a unique backstory.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

Where the rules of that most quintessentially English game were first devised by an eccentric inventor.

Eclectic collection of rare and beautiful stones in a historic home.

The forest that inspired Winnie-the-Pooh's Hundred Acre Wood can be found outside London.

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

This abandoned gun tower was built to defend the River Thames from a French naval attack.

The biggest and deepest Cold War bunker open to the public can be found in southeast England.

In a sleepy village in Oxfordshire, the visionary English writer's gravesite attracts a yearly pilgrimage.

This modern labyrinth lies in the shadow of a ruined medieval castle.

An optical Illusion once believed to be an electrical phenomenon.

The last manually operated turntable ferry in the world.

A pub that is literally in the middle of nowhere, but continues to do business.

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

Fifty years of contamination in Scotland's waters.

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

At just 25 inches at its narrowest point, it's one of the tightest streets in the world.

Soldiers carved these regimental badges into the chalk hills in remembrance of those who died in World War I.