Huge abstract sculptures of the Puerto Rican Flag.

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

The park that the Chicago Stockyards built.

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

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.

The palatial McDonald's that inspired Wesley Willis.

A speakeasy takes on Chicago's drinking culture.

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

A hollow cement depiction of time's inexorable effect on the human body.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

The most famous location in China was home to whole dynasties worth of imperial rulers.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Macabre astrological automaton clock dating to the late 1400s.

First planned industrial community in the United States.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Fortified homes of highland warriors that are still in use today.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

Underground monastery and fortress.

A museum glorifying the life of Stalin, located in the city of his birth.

Ancient rock-hewn town that witnessed key events of Georgian history.