Like many other photographers I enjoy visiting favorite locations multiple times. But sometimes when you look around all you see are the same things you have seen and photographed before. When that happens I find the best thing to do is grab a lens that I might not frequently use and see what happens.
In the case of the picture above, I used a 10.5mm fisheye and used a small window opening to frame the staircase. Considering that I have shot this building many times, this change allowed me to see something new.