A hidden oasis just north of Chicago's Chinatown.

A section in the cemetery mostly for circus performers, including victims of the famous 1918 Hammond Circus train wreck.

Burial site of the notorious Chicago gangster.

Wander down a side street dedicated to one of the members of the Beat Generation.

The 10th-tallest pyramid in the world, this former sports arena is now home to a massive Bass Pro Shops store.

First planned industrial community in the United States.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Water still flows through the oldest Spanish aqueduct in America.

The first graveyard named "Boot Hill" was established in Hays, Kansas, years before better known cemeteries with the same name.

Fans have made a utility pole near where the 90s musician was shot into an ersatz memorial.

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

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

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

This landmark honoring a local beer brand is an iconic part of the Minneapolis skyline.

Sleepy Minneapolis block beats Guinness Record for most churches on one city block.

This old residential building was once the largest flour mill in the world.

One of the world's premier laboratories for hydraulic engineering research takes full advantage of the water's power.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

Downtown Minneapolis mixed art and function by turning some of their sewer covers into works of art.

This kaleidoscopic mural shows Bob Dylan throughout his transition from young troubadour to Nobel laureate.

One of two giant blue cockerel statues erected with an intentional double meaning.