The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Native Americans built this circle of stones, which was used to predict astronomical events.

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

The humble beginnings of the man known for his lavish "champagne" music.

Miraculous tree that seems to sprout out of solid rock.

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

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

The world's only museum devoted to the wonders of fluorescence.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A curious collection dedicated to human and animal anatomy and pathology.