Although Glasgow Cathedral is the only medieval cathedral in Scotland and it's really magnificent, I still can't enjoy it very much because of its *black face*. A local told me that it was the fault of soot and grime which made this cathedral looks like that. (The coal was the only main power source in Glasgow for a long time.) Even if there were several cleaning and polishing projects trying to get ride of its *black face*, it still can't thoroughly come back. Maybe we should think it as the layers of history...


