A corkscrew-shaped barn in Ireland.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

An unusual manor of stunning beauty, born out of a crippling disease.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

The ancient tomb acts as a calendar that keeps perfect time.

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

The modern birthplace of Irish freedom.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

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

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

The greatest collection of New Orleans masking and processional traditions covering everything from Baby Dolls to Skull and Bone gangs.

Gold Rush-era tombstones line the park's paths.

Florida's first suspension bridge.

A sharply wedged sundial marks the point at which each day in the United States begins.

The remnants of sheer survival in Dublin's monastery district.

One street divides a single town that stands in two U.S. states.

This memorial pyramid marker honors one of the United States Government's first official camel riders.

The largest ancient burial mound in Ohio.

The highest point in Washington state is a volcano covered in glaciers.

Travel deep inside of Europe's second largest glacier in the world's largest man-made ice cave.

This shrine to the patron saint of Alaska sits on a small tidal island and was built from the land’s own beach stones.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

A graveyard of bathyspheres and diving bells paints a weirdly accurate account of ocean exploration's rickety history.