I really dig the stylized superheroes in this massive graffiti piece in San Francisco's Mission District. I didn't see the artist's name and the background text was too hard to read from my vantage point. (Update: Thanks to TheEvilJeremy for identifying the artists as Keb, Wand, and Buter, which is what the letters spell behind the superheroes.) Click to enlarge, and check out Batman, Green Lantern, Iron Man, Wolverine, Dr. Doom, and others after the jump.
David Pescovitz is Boing Boing's co-editor/managing partner. He's also a research director at Institute for the Future. On Instagram, he's @pesco.
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