I feel so stupid now for not realising that that was the bloody mary section. :L. I was really confused when there was no part of the tour that had anything to do with the Great Fire of London. But I agree, it was good. I went on Tuesday, the main queue was 2 hours, AP queue was half an hour. I had an annual pass and my friends didn't. Don't just join a queue, ask the person at the main entrance and they should tell you to go to the annual pass queue and say it's fine to buy a ticket for your friend inside . Have fun.