A Black Spiderweb
Marvel and more specifically, Spider-Man fans, will assume that this black spiderweb is from Venom, the sentient alien liquid-form who bonds with a host and gives them enhanced powers. Then again, that’s fiction, but this soot covered spiderweb isn’t what it seems to be at all. It’s actually the strands of soot that are held together by static electricity after a horrible fire. So, this may actually be remnants of a fire that raged in this building.