The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

A succession of eerily contemplative iron figures lead from a Scottish museum to the sea.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

This giant wooden treehouse within a sprawling garden has its own eatery.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

This tiny little cave was said to have been a refuge for a saint with a glowing arm.

This waterfall is one of the most spectacular natural features in the Scottish Lowlands.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

A house of bones — but nobody is quite sure to whom they belong.

This enchanting hill is home to fairy lore and a sinister local mystery.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

Follow the original medieval paths that wind through this intriguing section of the city.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

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

Britain's only herd of free-ranging reindeer.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.