The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The Reagan Peace Garden at Eureka College features a chunk of the Berlin Wall.

A museum and gift shop in a small Illinois town commemorates the work of E.C. Segar and the local figures on whom he based his characters.

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

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

A wondrously macabre treasury of obscure antiques and unusual oddities.

A small cemetery chapel designed by Frank Lloyd Wright and built in 1906.

The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Chicago’s incendiary role in the labor movement.

This house renovated by Frank Lloyd Wright was the centerpiece of a lavish 20th-century estate.

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

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

The murals have transformed a residential alley into a vibrant drive-through gallery.

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

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

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

Today this bizarre rooftop phone booth seems like a piece of kitsch but it was once used to spot disastrous storms.

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

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

Man-made geyser that rises to the exact height of the Gateway Arch.

Roses and other fascinating flora fill this garden built to commemorate Britain's immortal Bard.