Though the symmetry of Notre Dame de Paris stands out from the mere mortal constructs around it, I enjoy playing the game of identifying the breaks in its symmetry. Some of those are small, like the different statues around the building. Others are more significant, like the triangle in place or an arch above the left-most set of doors.
Decaseconds 
[…] Of the people standing in the dusky light and the long line to enter Notre Dame, it was actually those at the end of the line who were luckiest: they were still outside a few moments later when the lights illuminating the outside of the cathedral activated. […]