In August 2015, Aaron Darling, also known as O.blucka, and other street artists spoke with Community Impact Newspaper to explain how the art form became so popular in Austin. His and others' work has graced the walls at HOPE (Helping Other People Everywhere) Campaign's Outdoor Gallery, also known as Castle Hill and Graffiti Park, that is due for demolition after a unanimous vote Monday by the Austin Historic Landmark Commission. Here are 6 other spots in Austin where street art has left its mark: