stairway near to heaven

I wish I had a full-frame :-(

 

N.B.: This is the Superga-Basilica in Turin. The stair to reach the cupola of this church, you can see the location info on the map.

 

This is HDR with exposure bracketing on -3, 0, 3, combined in Photomatix 3.0. Balanced to get the window natural (otherwise a white spot) and the left top part where the spiral is on the left, more bright (otherwise it is dark/black)

Done