An already decaying Detroit just keeps on taking the punches. This time, it’s the art that’s disappearing. At 3 a.m. on Friday, another art installation by the Heidelberg Project, known for its extravagant exteriors of discarded objects such as stuffed animals, clocks, and records, has suffered an attack—the latest of many over the past year. An act of arson hasn’t been confirmed, but “it certainly is suspicious just linking the number of past incidents,” Fire Lt. Joe Crandall told The Detroit News. The world-renowned project began in 1986 as a social protest in response to urban decay, and there is a $25,000 reward to any information on the attack.