A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

It's a pretty creepy lock-up.

This historic crypt was said to have been designed and built by the very person who is buried inside of it.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

This state park was once an important Native American cermonial center.

World's largest magnetic research facility.

One of only two pod-shaped homes designed by Frank Lloyd Wright.

This creative sculpture was a way to "recycle" an old tree.

This historic headstone is said to mark the final resting place of a doubly-dead white witch.

The haunting remains of a failed housing development can still be found behind the big box stores that were to anchor them.

This fairytale-inspired cottage was created by a university literature professor.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

Affectionately known as "Lord Bot," this historic statue has a cult social media following and rightly claims to be “the most metal inhabitant of the Wren Yard.”

A small Richmond island dotted with the remnants of hundreds of years of history.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Illegal drag racing two stories beneath Chicago’s streets.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

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

This historic hotel invented the chocolate brownie.

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