Walk in the footsteps of the famed astronaut at Purdue University.

A historic hotel library in Indiana hides more than a few secrets on its shelves.

Covered in tens of thousands of coats of paint, this Indiana attraction holds a world record all its own.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

In Chicago, a pizza-enthusiast has opened a museum dedicated to the history of pizza.

This small-town opera house has appeared much more in national culture and history than its charming setting might suggest.

This small-town park in southern Illinois has a 1,000,000-gallon swimming pool and a 100,000-barrel oil well.

Parking lot where a Chicago mayor was inaugurated under very sketchy circumstances.

At the largest railway museum in the United States, you can see everything from an early steam engine to a functioning Thomas the Tank Engine.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

A towering Art Deco movie palace made to look like a Mayan temple.

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

This tiny historic jail along Route 66 is the perfect fit for exactly one criminal and their partner-in-crime.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

A military museum and library dedicated to the citizen soldier.

A historic and oft-filmed prison stands in a Chicago suburb.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

An abandoned observatory in the middle of the Illinois prairie.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

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

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.