A local road runs around a memorial to a teenager who died in 1860.

A view-altering observatory at the University of Texas.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

The inventor of the iconic Pringles can was so proud of his invention he was buried in one.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

Developers built a Walmart around one family's plot and constructed a mausoleum in the parking lot.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

A military museum and library dedicated to the citizen soldier.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Hot Doug's "Hot Dog" Stand.