This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

A series of idealized caves carved to entertain guests.

Legends say this red sandstone monolith and the dozens of smaller boulders that surround it were once a coven of witches—before a Scottish wizard turned them all to stone.

This Neolithic passage tomb forms part of a World Heritage Site.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

The colorful stairs are made with marble from the world's major quarries.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

The house in the middle of the motorway.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

The recreated ruins of a house designed to memorialize a World War I shelling on the town.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

This incredible viaduct was part of the Victorian railway boom and helped the Midland Railway navigate tough terrain.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The ruins of a medieval monastery named after a type of tree.

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

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

Achill's most recently abandoned village dates back to to the Age of Enlightenment.

A stone wall that mysteriously moved three feet from its foundation.