I just hit the page, fell it is wonderful with so good pictures and great 3D experience.
http://www.vatican.va/various/cappelle/sistina_vr/index.html
Control by mouse or arrow keypad. You can see the drawing on wall, on the ceiling.
The Sistine Chapel ceiling, painted by Michelangelo between 1508 and 1512, at the commission of Pope Julius II, is one of the most renowned artworks of the High Renaissance. The ceiling is that of the large Papal Chapel built within the Vatican between 1477 and 1480 by Pope Sixtus IV after whom it is named the Sistine Chapel. The chapel is the location for Papal Conclaves and many important services. vi wiki
