An inconspicuous footbridge beloved by San Diego locals.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The mysterious, untimely death of a Canned Heat band member still haunts this unfinished home.

An unreal vintage shop that wears its dadaist influence on its zombie fish.

With statues of Nelson Mandela and Harvey Milk this monument has been called the Mount Rushmore of California.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

What was once one of the country's largest confectionary plants is now an abandoned ruin, but is still pretty sweet.

A century-old network of freight tunnels underneath the city's historic business district.

The original Garfield station is the oldest station facility on the "L", with the station house dating from 1892.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

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

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

A bloodstain from "the wound of the transverberation of the heart."

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.

No one knows how many bodies are in this vault in a Chicago public park.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

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

Orthodox church partially financed by Tsar Nicolas II.

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

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.