A seemingly out-of-place comic book surprise sits on the 21st floor of the tallest university library in the world. 

The owner of one of the oldest homes in Amherst had a unique request before the home could be turned into a museum.

This exhibit is one of the largest and most well-preserved collections of Jurassic-era trackways in the United States.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

The home of an antique carousel still in operation.

The home of a famed utopian science fiction author has been preserved long after his predicted future in the year 2000.

One was an astronomer who spent his life chasing solar eclipses, the other helped make Emily Dickinson famous.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

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

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

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

These pretty kitties killed and ate as many as 135 railway workers.

To find the "unicorns of the deep" you've got to go downstairs.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

An enormous park-like oasis, full of famous Chicagoans' graves.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

A Bibliophile's Dream.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.