Industrial buildings of the past...

I doubt very much that, when Joseph Leclaire conceived this building in 1890 he imagined that in the 2000's his building would be listed among the protected buildings of Paris! And though it is and I can understand why, because it's a real masterpiece. Originally it was a compressed air plant that would power many things in Paris including what I once introduced you to as the Paris Wide Web! They apparently closed it in 1994. now it's an architecture school and a public library. I must visit the inside...