Taxidermy, Cigar Store Indians, A Model of a New York Tenement and Delicious Draft Root Beer.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

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.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

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

First planned industrial community in the United States.

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

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

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

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

This historic hotel invented the chocolate brownie.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

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

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

An enormous park-like oasis, full of famous Chicagoans’ graves.

A lush green oasis in the middle of Chicago.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

One man's unrequited love stands in a glass box forever.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

A chessmaster's dream destination.

The red brick house where the father of rock 'n' roll wrote some of his classic hits.