The only diamond mine in the world where you can keep what you find.

An incredibly well-preserved piece of ninth-century Viking poop.

This ancient settlement contains some of the largest earthen mounds in North America.

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

In 2013, historians discovered a hidden room devoted to the art of making royals' hot chocolate.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The ritual has been performed uninterrupted for nearly 700 years.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

Every St. Andrews student knows to avoid this inscription for fear of a martyr's curse.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

The world-record holder for the longest bridge stretching continuously over water.

The house where Charles Darwin's grandfather formed many of his influential ideas and inventions.

Three memorials honor the victims of the worst sports stadium disaster in Britain.

All that remains of the only English cathedral destroyed in the Protestant Reformation.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

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

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

Cold war icon and onetime "hole" in the iron curtain.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The most visited, and possibly most controversial, museum in Germany.

After serving in Vietnam, Korea, and even a stint in the Turkish navy, the unique ship is now open as a museum.

A miscalculation turns a very shallow freshwater lake into a very deep saltwater lake.

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.