One of few surviving standpipe water towers in the U.S.

An abandoned factory along the Mississippi coated by a giant mural.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

This mosaic-covered bar is brimming with curated curios.

This is not your typical jungle gym.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

A chessmaster's dream destination.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.

The park is home to the United States's only still-operating Dutch windmill.

This mechanical wonder towers above a river in Michigan's capital city.

Perched atop a brick smokestack, this enormous lug nut symbolizes the local minor league baseball team.

A carriage house converted into what resembles an 11th-century English manor house

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

The final resting place of Harriet Tubman and other famous historical figures.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

A dozen U.S. presidents have stayed at the historic resort, which was known as James Buchanan’s “Summer White House” from 1857-1861.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.