Britain's tallest megalith towers over the cemetery of a quiet English village.

A 2,000-ton rock resting in a state of a delicate balance.

A memorial overlooking a busy roadway is linked with the story of a 17th-century noblewoman’s legal battle for her inheritance.

These barriers stand as stark reminders of Northern Ireland's troubled past.

Commemorating the landing of William of Orange with his European army on their way to the Battle of the Boyne.

This stone harbor was key to Carnlough's limestone industry.

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

The atmospheric road was never meant to be so creepy.

World's largest working waterwheel has been around for over 150 years.

This medieval manor house was hastily fortified when it found itself in the middle of the Scottish fight for independence.

A sculpture of a courtesan towers above Lake Constance, recalling a church scandal.

The last bastion of Roman presence north of the Alps looms over a German town.

Tiny castle in the middle of the Rhine made you pay to pass.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

A beautiful medieval bridge allegedly constructed by the Devil.

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

A strange and ancient landscape hides the dark, cavernous remains of a 5,000-year-old flint mine.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

This fascinating museum takes visitors through Britain’s Roman past.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Northern Ireland's Brobdingnagian stepping stones.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

Originally commissioned as a sculpture to reflect the history of Belfast's red-light district, the final sculpture has been banned from Belfast public land.

This massive monument has been telling the time for 150 years—at a slight angle.