The world’s oldest surviving single-arch railway bridge.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

This inverted metropolis model is the artist's "revenge" for not being allowed to have a doll house as a kid.

Denmark’s never-ending bridge.

For decades, a bottle factory dumped their waste into these waters—now it's considered the best sea glass beach in England.

There were once more than five stones in this ancient monument.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

The medieval-looking hammer beam teak roof may be a Victorian vanity, but it's still absolutely magnificent.

A beautiful Greco-Roman structure houses a well once believed to have healing powers.

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

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

These tiny effigies are believed to represent victims of Edinburgh’s notorious Anatomy Murders.

These wooden pipes were crucial to providing water to Medieval Edinburgh.

A sweet symbol marks the place where torturous executions were once carried out.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Now home to a drinking establishment, this building has a macabre history.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

A famous pilgrimage site that remains hidden in the midst of a city.

The legend of a monkey that was hanged as a spy has inspired not only a football team name, but a successful mayoral campaign.