The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

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

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

These murals have been brightening a Chicago beach for more than 30 years.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

No one knows exactly how deep the world’s deepest geothermal hot spring is.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.

An ancient capital city that dates back 3,000 years and harbors many surprises.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

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

This lush 12-acre site was once named the finest Japanese garden in North America.

This striking art museum holds an amazing series of curiosity cabinets.

Tour the luxe "glass cage" that inspired and unnerved the architecture world upon its debut.

Wisconsin's most celebrated export gets the royal treatment on I-94.

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

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

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

Also known as the Osaka Garden, this garden was originally built in 1893 as part of the World's Columbian Exposition.

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