Fallout shelter placard locations

Hi, does anyone know of locations to any fallout shelter placards on any buildings in the Seattle area? I noticed one awhile back in the Queen Anne area on my way to Trader Joe’s but I can’t recall exactly what building it was on. Was curious if there were any other visible ones. Couldn’t find any locations online but resources that said 1 official shelter was under a highway near green lake and closed off in 2018 and around +800 buildings were designated as possible shelters back when the Cold War was going on.