Highlights: The Basilica of Our Lady of Angels and Martyrs is a Catholic secondary sanctuary and a priest-level cardinal church, built in the cold water bath of the former Diocletian baths. The entrance of the church is built on the ruins of the bath, which looks very simple, but the interior space is actually very impressive. The holy water bowl at the entrance adopts the shape of an angel, which fully reflects that this church is not simple. The main body of the church is a typical basilica structure, 90.8 meters long, 27 meters wide and 28 meters high, a huge cuboid space. In addition to the main altar in the middle, there are chapels on the two wings. During the period of the Kingdom of Italy (1870-1946), it became the official state church, including the later state funerals. A small door in the church leads to the Galileo Memorial Courtyard. On April 28, 2010, the Chinese Academy of Sciences donated a 6-meter-high bronze statue of Galileo designed by Li Zhengdao. At the entrance of the church are two gates designed by the Polish sculptor Igor Mitoraj. The left one shows Jesus and some martyrs deeply embedded in the body by the cross, as if they were about to break free from the bronze. The one on the right shows the Annunciation, with Mary humbly facing the angel.