Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

First planned industrial community in the United States.

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

A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

This historic hotel invented the chocolate brownie.

Hidden on the 7th floor of a historic building, this Cajun spot features wall-to-wall bottles of hot sauce.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Home to a protest movement, a bombing, and a dramatic change in labor history.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

Julia Buccola Petta's body was peculiarly well-preserved when it was exhumed six years after her death.

The young Black revolutionary was killed before getting to see a non-segregated pool in his hometown.

Inside the center are Italian works of art and a replica model of St. Peter's Basilica.

Outposts of this restaurant chain were shaped like jaunty chapeaus.

All that remains of the once-booming chain is a single orange-roofed restaurant.

This simple, broken column marks the final resting place of one of America's most famous explorers.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

Home of an evil witch famous within southern folklore.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

An antiquated German apothecary on Chicago's North Side.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.