The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

The sign to a demolished amusement park now stands in front of a local library.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A brush maker used his factory to protect blind Jews from the Gestapo.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

Paranormal activity on the great lakes.

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

This animatronic Christmas village within an industrial park creates a whimsical juxtaposition.

This lush 12-acre site was once named the finest Japanese garden in North America.

The world's longest known cave system.

For decades these polar bears have roamed all around a Nashville neighborhood.

The grave of America's 11th president is not in some grand monument but instead it's hidden away on the grounds of the Tennessee Capital.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

A rural hall of justice holds the world's only comic book and superhero museum.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

This whimsical sculpture garden is a local treasure.

The birthplace of a titan of American cinema.

Huge abstract sculptures of the Puerto Rican Flag.

This zombie-themed restaurant stands out in the heart of corn country.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.