i took pictures of the sistene chappel despite it saying no pictures.

However i turned off flash and used my sisters head to hold the camera steady.

got three or four pictures then a gurad askes me if i cant read, i respond in another language sorry, and move on :-P

(Yes i am aware flash will damage artwork, hence me not using any flash, so i dont see any harm in it. The signs are there banning photos because 9/10 people dont know how to turn off flash on their cameras).