A museum preserving one company’s history of preserving food.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

A swamp that was the site of prehistoric water burials also managed to preserve its corpses for millennia.

In the town of Åtvidaberg, the midday sun sets off a loud cannon boom.

Metal water storage tank turned ethereal concert hall.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

An artist's mausoleum with a haunting echo.

The world's most famous donkey lives in this pen.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

A massive bur oak tree believed to be some 500 years old is the centerpiece of this quiet urban greenspace.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

The largest hewn stone in history.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

A renegade art installation in a small Vancouver park is now officially sanctioned by the City Parks Department.

It would take 35 firetrucks to fill this enormous glacial pothole.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

A piece of outsider public art accompanied by a strange urban legend.

A museum within a museum, devoted to history's most questionable medical devices.

The restored and active Victorian-era final resting place of San Francisco.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.