This shop for all your super spy needs hides an educational secret.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A chance to follow in the footsteps of the word's most legendary animator.

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

A source of civic pride, though the reason for its construction is unknown.

This national park dedicated to the tallgrass prairie ecosystem still displays its military past.

This former nursery supplied plants for the creation of Chicago's largest park.

Where a brain, a beauty, a jock, a rebel, and a recluse met one Saturday and changed their lives forever.

An abandoned observatory in the middle of the Illinois prairie.

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

In a historic steel foundry east of the Mississippi River, thousands of wooden crates hold the architectural remnants of buildings long gone but not forgotten.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

In the middle of Calvary Cemetery stands this singular memorial to a small boy who died too young.

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

Complex aquaponics systems allow fish and plants to grow in harmony.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

A factory in Milwaukee where poop is reclaimed… and recycled.

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

The secluded resting place of a local historical figure who perished during the sinking of the Titanic.

Museum with an extensive collection of Cray supercomputers and related artifacts.

As the glaciers retreated out of northern Wisconsin, this unique natural wonder was crafted.

The only Frank Lloyd Wright-designed structure in the architect's hometown.