In the northernmost city in the world, it's illegal to be buried because it’s too cold for bodies to decompose.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

The effect of this ancient form of image projection situated atop an 11th century Moorish palace is thrilling.

The Bristol Camera Obscura housed in an ancient windmill.

360° views of the city plus five floors of optical illusions and hands-on science.

An offbeat angle on the ocean viewed through an antiquated lens.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

Walk through Czech history in Prague's largest graveyard.

The largest man-made crater in the U.S. marks the spot where we once tested mining with nukes.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

A picture-perfect town, perfect for blowing up.

A sobering account of the vibrant multicultural neighborhood that was destroyed under apartheid.

When Motown musicians came to Nashville in the 1960s they stayed at this historic record-pressing company because hotels wouldn't host them.

Descend 2,030 years into the past in an ancient tunnel built to support Jerusalem's most famous wall.

Arlington Cemetery exhibit dedicated to death and grieving.

A book bound in the skin of an infamous criminal, along with countless other specimens.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

The abandoned "Red Star Train Graveyard" is the final rusting place for precious artifacts of train history.