The preserved remains of the former Milwaukee County Hospital for the Insane are hidden in the wooded grounds of County Park.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

This midcentury chapel is a bold architectural statement and a symbol of Indiana's Lutheran heritage.

Where experiments are conducted on all things wood.

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

This small, but long-running hobby club has built one of the largest model rail lines in the US.

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

The only place in America where anyone who wants can shovel coal aboard an antique train.

This 880-acre facility is home to a massive collection of vintage motorcycles and cars, as well as a 2.38-mile race course.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

A creek tumbles over a series of step-like rocks to create this scenic water feature.

Hidden in the New Mexico desert southeast of Roswell, nine small deep lakes formed inside sinkholes.

European castle ruins in an American state park are actually the product of death and grief.

This bridge was constructed from the remains of the first Ferris wheel.

Train cars and railroad artifacts abound at this restaurant devoted to railway history.

This pebble beach is so beautiful that taking its rocks is against the law.

Home to a full-scale replica of the Ezekiel Airship, an aircraft that allegedly flew in 1902—a year before the Wright brothers took to the skies over Kitty Hawk.

Its unique collection details the history of the state's svelte railroads.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Explore the wide world of desert plants at this unique Palm Springs botanical garden.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.