I work plant management, working overnights. In this building (a museum). Myself, janitors, mechanics, and security experienced things like hearing footsteps at night, one janitor claimed to see a transparent woman standing in an elevator, one security officer claimed to hear a woman talking in the middle of the night, a wedding photographer captured a photo of a transparent woman in a white dress, and I’ve heard footsteps at night behind me. No one enters this building besides security and myself due to the Stay at Home order. I walked in the mechanical room and noticed this chair that’s always against a wall. Something didn’t feel right so I walked out of the room. I came back to record the incident and this is what I captured. I ran towards the security desk to show the officer working that night. He was speechless. We contacted the director of the museum and the director plans to have some sort of blessing inside the museum.