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

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

These pretty kitties killed and ate as many as 135 railway workers.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A desert in southeast Asia, complete with a beautiful lake covered in lotus flowers.

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

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

The most alien-looking place on Earth.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

The largest stone moai on Rapa Nui.

Light still pours into the ruins of this ancient Islamic observatory.

A fiery crater has been burning in the Karakum Desert since 1971.

Mysterious hillside with a continuously burning natural fire.

Unusual building appears to be haphazardly built from randomly piled bricks.

An ancient Viking village in North America that predates Columbus by 500 years.

One of Canada's most incredible rare book collections holds hundreds of thousands of gorgeous tomes that the general public can touch.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

An old world fairytale-land with over 350 fairy folk figurines hidden amongst 800 year old cedars.

From neon green watering holes to bleached elephant foetuses, this Mozambique museum makes natural history weird.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.