Graffiti has been around since the ancient civilisations of Egypt and Greece - but depending who you ask, it can be perceived as either a beautiful art form or outright vandalism. Those who don’t warm to this art often reference the damage it can create and its association with gang culture. However, this art form is way more diverse than the scribbles of local criminals; it is also the product of political activists, artists, branding, and music culture. Authorities are often conflicted by the art. Sometimes it is seen as something that needs to be removed immediately, while in other instances it is preserved and protected for the public to enjoy. This often depends on the contents and location. Regardless of where you stand, we’re sure you’ll appreciate these 20 incredible shots of this ancient art form swarming our modern cities.