Apostles on Notre Dame's Roof

I was startled when I realized that there were figures ascending or descending on the spire of the cathedral.  They are copper so they have mellowed to a very noticeable green.  I have no idea how I have missed seeing them in the past.

However, when I started thinking about the apostles, I remembered that when I climbed the 400 steps up the tower in the building, I had been fascinated by the gargoyles but had also wondered about the people on the roof as well.  But that happened years and years ago.

They were a delightful surprise yesterday.