This 700-year-old storehouse was a POW jail, aviation workshop, and Titanic memorial before becoming a brewpub.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

It houses the remains of a 17th-century version of the Titanic.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Inside this art museum resides one of Glasgow's most famous musical instruments.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

A 200-year-old collection of oddities and medical paraphernalia.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

The skeleton of a whale that beached itself in this Irish town is now on display in their public park.

An oddly conical beacon perched atop beautiful Irish cliffs.

A tribute to the incredible generosity the Choctaw Nation showed the Irish people during the Great Famine.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.