A rocky Irish outcropping with a history of wealth, conflict, and ruin.

This European portal tomb has a capstone that weighs around 150 tons.

An elaborate Romanesque archway, built right before the British occupation of Ireland.

Follow lines from a W.B. Yeats poem through interconnecting gardens designed to appeal to each of your senses.

Curated by a small staff of veterans, the Carlow Military Museum valiantly provides a personal perspective on over 800 years of Irish history.

The remains of a 13th-century Norman fortress, largely destroyed by an explosive renovation.

The bones of prehistoric animals and early signs of human habitation have been found inside Malta's "cave of darkness."

An Irish cemetery filled with victims of political strife and violent conflict, including the grave of Bobby Sands.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Possibly the world's largest hourglass only needs to be reset every New Year's Eve.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

Priceless space junk on display in front of a local Dairy Queen.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

New York City's smallest piece of private property.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.