An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

A corkscrew-shaped barn in Ireland.

Obelisks and stone pineapples in the Irish countryside.

The mark of the Devil's horns on a marble column in Milan.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

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

The world's largest reflecting pool is just two centimeters deep.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

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

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The skeleton of a whale that beached itself in this Irish town is now on display in their public park.

The modern birthplace of Irish freedom.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

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

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Vast stretch of tide-pools with a unique Moroccan charm.

This otherworldly French waterfall looks like its waters have turned to stone.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The final resting place of the poets Shelley and Keats.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Metro station with a claim to rock n' roll fame.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.