We got there 90 minutes of them opening and we may have been 10 people in front of us. Like I said in the post, I spent about 3 hours down there. With it being dark, I didn't want to take a chance of the photos being blurry. Catacombs was my #1 place to go. I've gone to them in Rome and most places strictly restrict photography. Père Lachaise was great as well. You are right, I'd love to shoot some of the cemeteries at night- but most close long before sundown.