I saw lots of hey-someone-else-did-it-so-I-gonna-do-it phenomena, like people writing their names on thousand-year-old walls, mounds of gum in Florence's lines of tourists, locks locked to locks at famous places, and this wishing window.
Bologna used to have well over a hundred tall towers during the feuding-family centuries, but now there are barely twenty. After paying just three euros and practicing my Italian for "excuse me" over fifty times, I made it to the top of the tallest tower.