A small museum celebrating the fiberglass giants that are icons of America's highways.

This tiny historic jail along Route 66 is the perfect fit for exactly one criminal and their partner-in-crime.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

After an Illinois church was struck by lightning and burned down, Frank Lloyd Wright designed this replacement.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

The statues honor the state transportation employees who've died while performing their work-related duties.

The first home and studio that belonged to the famous architect.

Pumpkin-like gargoyles and grotesques peer down from the rooftop of this unassuming apartment building in Illinois.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

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

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

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

Huge abstract sculptures of the Puerto Rican Flag.

Parking lot where a Chicago mayor was inaugurated under very sketchy circumstances.

A lone traffic cone perched on a ledge has remained unmoved since at least 2011, unofficially earning the status of a tiny Chicago landmark.

Louis Sullivan’s dark, swirling cast-iron designs envelop a popular department store in this Chicago landmark.

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

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

Statue dedicated to the star of an old television show.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.