Secret Tunnels Under City Part 2- Finding The Backrooms

watch part one first here: https://www.youtube.com/watch?v=Rt0zuWUWcqA&t=12s in part 2 we explore even more tunnels and a few more buildings including an old Laboratory!
for even more backrooms check out: https://www.youtube.com/watch?v=NT9-HD59DBQ&t=13s