This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

The largest greenhouse in the world is home to over one million types of plants.

A unique waterfall that some believe attracts the fairfolk.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

400-year-old garden, restored to beauty.

A fantastic castle rumored to be the birthplace of King Arthur.

This tangled English forest looks like something right out of a fairytale.

The longest hedge maze in the world.

Famously misunderstood wonder of the ancient world

A relic of Victorian grandeur hides beneath a busy South London road.

A Roman spa buried deep beneath the City of London.

This secluded walkway overlooks a magnificently wild London green space.

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

A hands-off space for graffiti artists to hone and display their skills.

Eighty million natural history specimens call this gargantuan museum home.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

This graveyard is the eternal home of many brave pioneers who settled the Great Northwest.