Graffiti

A partially hidden wall graffitied by spectators of the 1976 Bicentennial, recently rediscovered.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

The etchings on this narrow channel between two islands bear witness to maritime travelers who have passed through since the Middle Ages.

A hidden alley in urban Baltimore is a haven for graffiti artists.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

An ever-evolving wall of graffiti art off East Liberty Street.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

In the heart of Brigham Young's promised land sits a festering plot of industrial ruin that has been claimed by society's outcasts.

Graffiti-covered ruins that were once part of a farm owned by a mental hospital.

A strange, heartwarming, decades-old declaration of love on a New Hampshire roadside.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.