Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

This candy-striped tower is the farthest east you can go in the United States.

This architectural onion has an original 1930's Jerry O'Mahony dining car at its core.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

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

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

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

An ancient chamber filled with wonderful rock art and a Neolithic carving of a human face.

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

The oldest licensed distillery in Ireland.

The remains of this deep, dark mine have left behind a haunting rocky warren of tunnels.

A remarkably intact castle that once was the largest in Ireland.

Local legend says the remains of Father Christmas lie within the medieval grounds.

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

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

A collection of human remains, animal body parts, and other macabre curiosities all legally for sale.

A brick-paved former section of the historic coast-to-coast highway.

One woman's dream became a train hotel in her backyard.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

This remote island in Iowa was abandoned after being devastated by flood.