Read between the lines of the subway map to find the hidden abandoned Civil War fort.

The final resting place of the great escape artist, where some still gather to wait for his escape from death.

A small alleyway lined with locally drawn scenes of nostalgic anime and cartoon characters.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

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

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

One New Hampshire alleyway has become home to a public gallery of feline art.

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

In the middle of a desert subdivision, there is supposedly an impact crater site from Kcymaerxthaereal times.

The most isolated mailbox in America lets desert travelers record their passing.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

A massive work of modern art that appears to be a crop circle in the middle of the desert.

A pair of large white marble lions guard this stretch of the Mojave Desert, and it is utterly mysterious how they got there.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

The site of an underground detonation of a megaton nuclear bomb in the middle of the Mojave Desert.

This large pile of traveler-curated rocks by the dry lakebed is a longstanding tradition on the Old Mojave Road.

The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

A collection of anti-communist sculptures stands watch in the Mojave Desert.

An ornate abandoned schoolhouse hidden in the woods near a decaying mill town.

A monument commemorating the discoverer of radio astronomy.

Artist Jack Pierson made this surreal sculpture in honor of Wonder Valley, a countercultural community on edge of civilization.

A small burial ground honoring Native American veterans of the Revolutionary War.

A sycamore tree grown from seeds that traveled to the moon.