A historic landmark and museum filled with curious objects representing the history of Key West.

Visitors are welcome to enter this lush Key West sanctuary to entertain its plethora of rescued parrots.

A monument celebrating the idea of reaching inaccessible places.

At the turn of the 20th century, the Minnehaha County courthouse played host to sensational public divorce trials.

This natural sea arch highlights Ireland's rugged coastal beauty.

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

A moody and picturesque riverside ruin overgrown with vegetation.

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

A standing relief of a Norman knight whose posture marks him as a Crusader.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

This park on the outskirts of Rome boasts two ancient Roman aqueducts and a medieval tower.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Hans Christian Andersen for the postmodern world.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.