An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Overlooking a Scottish loch, this beautifully crumbling castle once inspired a poem by William Wordsworth.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

The television series' iconic giant foot was borrowed from this classical painting.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

This tiny movie theater was the last one in the U.S. constructed in the Nuevo Deco architectural style.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

These fantastically named natural pools look like something out of a Scottish myth.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Abandoned railway line circling the city of Paris.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

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

There's an exclusive Beefeaters pub hidden in the Tower of London.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.