'Fallen Blossoms' Explosion Project by Cai Guo-Qiang

In 2009, Cai Guo-Qiang was commissioned by the Philadelphia Museum of Art to create a site-specific explosion event on the front facade of the museum. The project, titled Fallen Blossoms, used a gunpowder fuse, metal net, and scaffolding to activate a blossom pattern for 60 seconds, temporarily setting the columns of the building ablaze.