Friday Night Vatican Museums Tour Including Sistine Chapel. If you’re in Rome between May and October, don’t miss this Vatican night tour, which takes place only on Fridays. With a knowledgeable guide, tour the Vatican Museums and Sistine Chapel at night, when you can admire the revered collection of art without the larger daytime crowds. Visit the Gallery of Maps and Raphael’s Rooms, and see the Michelangelo masterpieces that cover the Sistine Chapel’s famous frescoed ceiling. Book and Save 4% Off Friday Night Vatican Museums Tour Including Sistine Chapel.