This 19th century Sioux City candy company is the home of the Twin Bing, a historic, chocolate-covered treat.

A replica of the self-taught naturalist's iconic cabin stands inside a library near his hometown.

An underground wonderland in Iowa.

The World's Largest Bull.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

148 feet long and in the middle of a verdant forest.

One person's lost luggage is another person's treasure.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

A giant mascot, a car bomb, and the mafia mingle in the history of a defunct restaurant chain.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

Collection of vintage trailers double as hotel rooms.

This love letter to Poland serves bracing dill pickle soup and plump pierogis.

A Saint Nicholas-themed ghost town in the Mojave desert.

Thousands of glyphs created by an unknown culture decorate the rock formations of this canyon.

Two geoglyphs that are truly unique to North America.

A sparse, solitary sequoia still stands as a living tribute to the famous conservationist who planted it—but it's dying.

This historic Chinese church was relocated and revived as a museum that preserves and celebrates Chinese art, history, and culture.

A 90-acre park on former landfill that hosts an annual kite festival.

Giant jewel-toned statues fill the grounds of this Cambodian Buddhist temple in California.

One of the largest Buddhist communities in the West sits on the site of an old hospital.

This unique graffiti art from the 1940s has become a staple of this local landscape in the remote California desert.