The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

Parts of the civil rights movement unfolded in this historic eatery, helmed by the "Queen of Creole Cuisine."

The second oldest continuously operating bar in Louisiana.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

Where old school Polish Chicago and young hipster Chicago live side by side.

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

The subtle science of a master molecular gastronomist.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A lush green oasis in the middle of Chicago.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

A unique botanical garden housed in three giant geodesic domes.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.