The Baalbek International Art Festival is staged each year in July within the ruins. This is a major Festival, attracting some big names, and therefore big audiences. If you are planning to visit Baalbek at this time be aware that the Great Courtyard will be full of stage, lighting equipment and seating and access will be limited. They start setting the place up quite early, were were there in late May and they had already begun.
Your plans to stay in Baalbek could also be affected.
On a recent visit to Baalbeck my husband wandered round the outside of the ruins on his own to take some photos at night. He was invited in to the Hezbollah exhibition (near the entrance to the ruins) by the man in charge there and the two of them were the only people there at the time. The man then propositioned him and my husband made a swift exit. The same man was on duty at the museum the next day.
If you're travelling here with children... or are not very stable when walking be very careful... The ruins have been here for thousands of years and the floor hasn't been exactly paved since then, so there's a good chance you could end up on your anus...
apart from that the steps can be quite steep when entering the ruins and there isn't a lot of barriers etc so you can climb anywhere you like...
as a general rule BE CAREFUL!
My wife and I arrived as part of a group. After our visit to the site we all went to the string of cafes and stalls near the entrance gate. Once we'd finished our coffee we both went back to the coach to get something. We were out of sight of our party. We were immediately surrounded by about ten youths who were begging/trying to sell us gum. Skilfully, the moved between us and kept us apart. It was really worrying for a while. We kept saying no and they kept pressing us ---luckily our tour guide arrived. These are not local kids, the cafe owner told us ---they are aggressive gypsies who are troubling unaware tourists. Be aware!