The first overseas server for Facebook in Sweden's tundra.

The world's first and only escalator for lazy bicycles and their daunted riders.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

This stone honors the U.S. Rangers who made Carrickfergus their home base during World War II.

A local remembrance for lives lost—a poppy for each—in war more than 100 years ago.

The highest peak in Northern Ireland is topped with a stone tower and haunting burial mounds.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

The Bristol Camera Obscura housed in an ancient windmill.

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

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.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

The view from this giant Stone Age toad is unexpectedly beautiful.

This tower was constructed to commemorate the man who helped bring true democracy to the United Kingdom.

Legend says this little-known stone circle is formed from people petrified as punishment for dancing on the Sabbath.

A headstone notes where the most famous of Robin Hood's legendary Merry Men is reportedly buried.

These unique stepping stones hug a river's edge to take hikers on a journey through a limestone gorge.

This unique creation was used to house and wash sheep prior to shearing.

6000-year-old site covered in more than 50 megaliths.

A museum marks and documents the site of the Titanic's launch.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

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

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.