Illegal drag racing two stories beneath Chicago’s streets.

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

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

First planned industrial community in the United States.

These pretty kitties killed and ate as many as 135 railway workers.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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

This historic hotel invented the chocolate brownie.

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

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

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

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

This large stone residence served as a field hospital during the Battle of Gettysburg between stints as a tavern.

This Civil War monument was designed by an eccentric architect and Gettysburg veteran.

This covered bridge was used by both Union and Confederate troops during the Battle of Gettysburg in 1863.

Home of the only civilian casualty at the Battle of Gettysburg.

This monument marks the beginning journey of a wounded soldier's leg that ended up almost two states away.

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

A diorama of the Civil War, fought by cats.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.