ART IN TREVI
In Italy, and I guess throughout most of Europe, building hundreds, sometimes thousands, of years old are crumbling away due to years of neglect and now, air pollution. Car exhaust causes marble to soften and leaves an ugly black residue. For these reasons you'll often see buildings covered in scaffolding as they're being renovated and/or cleaned.
I know there's nothing more disappointing than rounding the corner, anxious for that first glimpse of a building you've only seen in pictures before - only to find it shrouded in scaffolding! When that happens, you have to tell yourself that the work-in-progress is necessary to ensure that these building will be around for generations to come.
Here in Umbria, in addition to the regular maintenance, there are still repairs being made from damage caused during the 1997 earthquake. If only I'd had the concession for scaffolding and cranes I could be living the high life by now!