忘了说 在教堂内 地上显示 罗马的子午线 还有一个日晷

可惜知道的人不多

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

https://www.atlasobscura.com/places/meridian-line-of-the-basilica-of-st-mary-of-the-angels-and-the-martyrs