Eighty million natural history specimens call this gargantuan museum home.

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

Giant topiary dog once played a role in a terrorist bomb plot.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Centuries of human activity have forged an eerie landscape of ruins and craters on an exposed and windswept hilltop.

This whimsical, unique clock has been entertaining shoppers for well over 20 years.

This charming railway is one of the oldest and steepest funiculars in England.

The largest public library in the United Kingdom was designed to reflect the industrial and artistic history of the city where it stands.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

This pub can leave even the sober feeling slightly unsteady.

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

A little sculpture with a large wardrobe.

Climb inside an iron crystal magnified 165 billion times its normal size.

This doorless 20th-century elevator doesn't stop or slow down.

Macabre astrological automaton clock dating to the late 1400s.

One of the last remnants of the Bessemer process that revolutionized steel production during the industrial age.

A unique sculpture park that features the works of several famed artists.

This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

The house in the middle of the motorway.

This haunting stone chasm is a hotbed of mossy rock and English legend.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

Some of England's last cave dwellers lived and worked within this huge cave.