A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

This nature mural exists to protect the surrounding environment and its own canvas from destruction.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

A fitting attraction for the corn capital of the world.

One of the first intercontinental ballistic missile sites in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

The first declared National Monument in the United States.

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

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

This freshwater spring fills with 10,000 gallons of water per minute.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.