In the Ozarks, a waterfall shoots out from a glorious hole.

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

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

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

This boulder stays on its mountain thanks to a huge chain and on the map due to local legend.

This moving cemetery sphere is a slowly rolling stone.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.

Where the author wrote her beloved "Little House" books.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

Erosion and time have created a naturally-formed water park.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Now nearly abandoned, Kaskaskia was once the capital of Illinois and one of the most important towns on the upper Mississippi.

One of the first historical sites of an alternative universe was installed in the town of Paris, Illinois—which is now home to an annual spelling bee of Kcymaerxthaereal words.

Cold War missile launch site which has been converted to a public park.

World's second largest particle accelerator, where nature reveals its secrets.

A beloved Chicago music venue offering cold beer and lots of “Friendly."