A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

A small museum dedicated to the whimsical tool that turns sugar cookies into works of art.

The Kalamazoo factory has 100 years of instrument-making, and one big wartime secret.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

A rare pod of derelict midcentury Futuro and Venturo houses lines a semi-abandoned beachfront resort outside Taipei.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

A former barn converted into a massive train diorama.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

More than 5,000 contemporary and "historic" mustards from around the world.

This sandwich shop has a century-old elevator behind a sheet of plexiglass.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

You can cross from one country to another in a single hop on this little bridge.

At 929 pounds and 26 feet tall, this stainless steel fork can only be used by the likes of King Kong.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

Slyly buy a shake in the Parker Meridien lobby.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

This long line of cement defensive wedges is named after the famous chocolate bar for obvious reasons.

This massive mushroom has spent centuries eating its way across a huge swath of Oregon.