While touring the Vatican museums, we would see a sign with an arrow at nearly every turn that said 'Capella Sistina' -- basically, 'Sistine Chapel, this way'. At first when we would see the sign, we would get excited and think that we were about to step into the Chapel... and each time there would be another room! After a while it turned into a little joke. Once we eventually got to the Sistine Chapel, it was crowded and hot, and much smaller than we had thought. The rest of the Vatican museum was incredible, though!

Source: http://www.flickr.com/photos/karyns_pics/434915749/