Home to items never before seen by the public.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

This shallow cave got its name from copious amount of human bones found inside.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

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

Natural sonic phenomenon comes with a grisly legend of murder and blood.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This quirky hot springs town known to locals as "T or C" was named after a radio show.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

Free public park and gardens filled with peacocks and peahens.

Controversially claiming the title of world's biggest bass drum, UT's Big Bertha was once made radioactive by the Manhattan Project.

This failed condo development was reborn as a street art hub.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

One part antique store, one part curiosities hodge-podge.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.