The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

Old Danish castle immortalized in Shakespeare's Hamlet.

A walkable map of the world, made from soil and stone by one man.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

An intricately carved Viking church overlooks a glistening fjord.

Home to three historic ships from the age of Vikings.

Walk 2,300 feet above the ground on the "Troll's Tongue."

Former self-sufficient mental institution now a planned community.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

A Building for Your (Former) Funerary Needs.

A Norwegian church that was built before Wisconsin was even a state has been entirely moved to a nicer spot.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

Hub of Scandinavian culture in a Minneapolis deli.

14th century Norse artifacts in Northwestern Minnesota could have proved a Viking landing before Columbus.

The literary king of the Jazz Age was born in this lovely Minnesota home which still honors his legacy.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

The first of Lancaster's "rural cemeteries."

According to local myth this cemetery is half evil spirits, half good—split down the middle.

This jail which was in service for over a century is now open for curious visitors.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.