These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Large Hadron Collider and the Birthplace of World Wide Web.

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

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.