I have a problem finding the underground entrances in NY, I've been searching everywhere, even with the help of online maps. For example, I've searched all around city hall in NY, even found a cellar door that looked like it might be an underground entrance, but for some reason I can't interact with it and/or the entrance doesn't show up on my map. Also checked out trinity church, Bowling Green, and a few of the other locations. why won't they show up?

I have a problem finding the underground entrances in NY, I've been searching everywhere, even with the help of online maps. For example, I've searched all around city hall in NY, even found a cellar door that looked like it might be an underground entrance, but for some reason I can't interact with it and/or the entrance doesn't show up on my map. Also checked out trinity church, Bowling Green, and a few of the other locations. why won't they show up?