There is a rare breed of painters out there that brave harsh and dangerous conditions to do advertising the way it's supposed to be done. "Wall Dogs" strap into harnesses and hang over ledges to hand-paint some of the sickest murals ever. Chances are you've seen their work and mistook it for just another huge vinyl poster, but what artists like the team over at Colossal Media do is a thousand times more awesome than what any printer is capable of.

This short film by Vocativ goes behind-the-scenes and over the walls with these painters to see just how involved their job is. 

RELATED: We Tumblforya: Sky High Murals / Colossal Media  

[via Hypebeast]