This small glass cube is a peaceful out-of-the-way sanctuary at the busy airport.

Take a drunken tour inside the world's largest known geode.

This retired stagecoach tavern is the oldest building in Cleveland.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

Urban explorers embraced America's now demolished first suburban mall, south of Chicago.

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 museum filled with larger-than-life works of art.

The house is an iconic pilgrimage site for fans of the Illinois-based emo band.

The inconspicuous grave of the University of Illinois' first president is just steps from the main quadrangle.

The oldest experimental corn field in America is still creating better ways to grow crops.

Fragments of a massive unfinished sculpture sit near the main quad of the University of Illinois.

It's a unique monument honoring a great character who inspired a generation of young women to be more and pursue their dreams.

Ornate limestone building now filled with geologic specimens, and more.

A wartime promise becomes a shrine to Our Lady of Lourdes.

In an alley not far from where two great highways meet, byways of a very different sort are honored.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

The world's largest anatomically accurate brain sculpture.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

Where hikers on the Tecumseh Trail can exchange a dirty sock for a free geode.

A 30-year-old Sycamore tree grown from a seed taken to the moon and back.