The “Hopper’s Hands” sign at Fort Point National Historic Site in San Francisco is a metal sign with a pair of yellow and black hands attached to a chainlink fence at the rear of the brick structure. The sign was created by Ken Hopper, an ironworker on the nearby Golden Gate Bridge, as a way to make the fence more welcoming to visitors and runners. Hopper has made several different versions of the sign over the years, and he also added a set of paws a few inches off the ground to accommodate visitors who bring their pets. The sign has become a popular destination for people to visit and give it a “high ten” or a high five.