I put in this fantastic italian stone floor , a blue-gray stone used in the duomo in florence .
我安装了这种很棒的意大利石材地板,一种用于佛罗伦萨大教堂的蓝灰色石头。
The wall of the duomo has become a multilingual record of visitors and their wishes , and marking it has become an accepted , if not necessarily desired , activity in florence .