These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

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

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

A modern-day wunderkammer dedicated to Indianapolis history, Afrofuturism, and musical vibrations.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

A number of gruesome unsolved murders have turned this simple home into a morbid tourist trap.

A century-old network of freight tunnels underneath the city's historic business district.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A military museum and library dedicated to the citizen soldier.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

These abandoned grain silos and tunnels are an urban exploration dream.

Cemetery featuring rare glass-fronted columbarium.

A display of magnificent stained glass windows is the first exhibit of its kind.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

Years of archaeology, just chillin' by the water cooler.

All of Chicago's wood-paved streets are long gone but two alleys remain.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

A hollow cement depiction of time's inexorable effect on the human body.

A gothic church spire sits atop this skyscraper, the tallest church in the world.