On the grounds of this study, Lew Wallace composed "Ben-Hur: A Tale of the Christ" and many other works.

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

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

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

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

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

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

Walk in the footsteps of the famed astronaut at Purdue University.

Meant for a railway that was never built because of the Great Chicago Fire, these piers still stand nearly 150 years after they were installed.

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

The 40-year-old machine serves soda quicker than you can catch it for a mere 75 cents a pop.

A small abandoned and abused cemetery that has become a magnet for ghost hunters.

The NBA player's elaborate former home is now a ghost of its old glory.

A sprawling outdoor museum filled with larger-than-life works of art.

The final resting place of the hero of Air Florida Flight 90 known as "the man in the water."

An abandoned observatory in the middle of the Illinois prairie.

A Depression-era sculpture by Charles Umlauf survives in a small suburban post office.

The legacy of an unsolved, gruesome murder rests beneath the spans of this historic bridge.

The empty tomb that houses the memories of Roy Bertelli's revenge.

In a grove of fast growing walnut trees outside Paris, Illinois, a marker shares the story of a fictional road building culture.

Abraham Lincoln's likeness rests at the top of this giant totem pole.

A bloodstain from "the wound of the transverberation of the heart."

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.