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

First planned industrial community in the United States.

The oldest experimental corn field in America is still creating better ways to grow crops.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The celebrated eyesore created by starry-eyed sweethearts.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

A large circus museum with summer performances.

This replica of the Greek structure is in the heart of Nashville.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

The spectacular collection of one of the world's best woodcarvers.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A hot dog stand where the heads are just as hot as the dogs.

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

The key to turning shifting dunes into the green oasis of Golden Gate Park.

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

One of the last functioning antique elevators in Chicago.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

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

The 606 is a decade in the making.

"We Seceded Where Others Failed."