[subterranean]

I have been wondering the very same thing about the materials. I just couldn't imagine how they were going to restore the facade of this beast since it looks so dingy, but I guess that will come into focus in the coming months as they're removing the tile work and either cleaning them up or installing replacements.

I hope this majorly exceeds my expectations because, quite frankly, they haven't been very high. It's a cool building, but difficult to bring into the 21st Century while maintaining its unique character.