A bizarre house filled with an astounding array of collections.

This seemingly charming home memorializes and honors the victims of a century-old unsolved murder.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Send a postcard while vacationing with Satan.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

The only place in America where anyone who wants can shovel coal aboard an antique train.

A mini Wrigley Field for mini baseball players.

The world's largest wooden structure.

This museum is dedicated to the most famous Irish writers in history.

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

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

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

Inside this former medieval prison is a collection of objects designed to inflict unbelievable pain and suffering on the human body and mind.

Christ's blood allegedly preserved in a Belgian town.

A little sculpture with a large wardrobe.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

These temples are among the oldest free-standing stone buildings in the world.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

These caves secretly held national treasures during World War II.

A Byzantine-era church hidden in a wooded area below the Acropolis.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

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