We had a fabulous tour of the Vatican Museums with our guide, Marina. She was so knowledgeable about painting, sculpture, frescoes, architecture, history, etc., and her enthusiasm for the subjects enhanced our enjoyment. We especially liked her introduction to the Sistine Chapel. She first showed us pictures and explained the meaning of the ceiling so we could really appreciate it when we were looking at it. We highly recommend the tour, which was very comprehensive, and our guide. The four hours flew by.