This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

When the rain falls, this drain system turns into a musical instrument.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The first museum in the world devoted to sexual gadgetry.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

A slice of central Asia in the middle of Berlin.

The abandoned remains of this Victorian brewery hide crumbling bowling alleys and rusting industrial gear.