Home to a protest movement, a bombing, and a dramatic change in labor history.

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

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

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

The 606 is a decade in the making.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

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

A Bibliophile's Dream.

A science teacher's dream.

An antiquated German apothecary on Chicago's North Side.

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

A speakeasy takes on Chicago's drinking culture.

A monument to the art of slicing people open.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Eighty million natural history specimens call this gargantuan museum home.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.