For his latest piece, Spanish urban intervention artist SpY installed 150 nonfunctional surveillance cameras on a nondescript wall in Madrid. The work, titled CAMERAS, is a monolithic reminder that you’re always being watched, no matter where you are, and there’s something aesthetically satisfying about its symmetry and repetition as well.

SpY wouldn’t say where exactly the piece is, but did give ANIMAL some insight as to his reasons for creating it. On one level, CAMERAS is a reaction against the conservative Spanish government. “My idea is to generate a debate about excessive surveillance to which we are subjected,” he said via email.  “Now in Spain with the new conservative government, there are new laws against the rights of expression.”

See more photos of CAMERAS in the gallery.