If you visit the burial place of King Frederick the Great, you'll likely find a couple of potatoes sitting on his tombstone.

In addition to escorting prospective couples to and from ballrooms, this lane was also a place for gentlemen to settle scores.

An underground wonderland in Iowa.

In addition to showing films, this one-screen arthouse cinema from the late 1940s is a museum of old film equipment.

Designated as an Underground Railroad research site.

A steeple in the shape of a golden hand pointing straight up commemorates Zebulun Butler, the first full-time pastor of this Mississippi church.

Once the primary source of ice in this region during the mid-20th century.

A town's history displayed through a massive work of art.

Garments from across the globe call this hidden gem home.

This airfield played a key role in both World War II and the Cold War.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

Once home to the episcopal curia of the local diocese.

This massive work of art was designed to commemorate Burns Night and the national poet of Scotland.

Before becoming a poet John Keats studied here to become a surgeon.

A whimsical roadside community of little metal people.

A series of colorful murals breathes new life into old grain silos in Spain.

Cut into a sheer cliff face, these stairs are the only way to reach a secluded Scottish harbor.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

One of the best-preserved ghost towns in Arizona speaks to the difficulties of establishing mining towns in the 19th century American West.

A historic jail preserves etchings from over a century of incarcerated people in a town with a rough and tumble past.

The damming of the Colorado River buried an iconic geologic formation before record-breaking drought brought it back.

An open-air, roadside eatery celebrating a historic indigenous cuisine of complicated significance.

A touching tribute to the "Wonkey Donkey."

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.