The longest spit in the United States ends at a lighthouse in the Strait of Juan de Fuca.

This historic Victorian hotel has a scandalous history of affairs and murder.

This preserved puppy was an adorable beacon of charity.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

See some of the world's greatest racing horses at this idyllic thoroughbred breeding facility and garden complex.

This center tells the story of one of the most famous battles in Irish history.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

One of Ireland's most infamous prisons for rebels including men, women and children.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

Experience what life was like in Ireland during the Viking and medieval ages.

The modern birthplace of Irish freedom.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

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

Southern Italy's spinning top village.

An impressive bridge over a ravine also served as an aqueduct.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

People have been living in the cave houses on this Italian hillside since the Neolithic era.