Say goodbye to Republican Square and walk to the nearby Notre Dame Cathedral (Notre Dame Snow Cathedral) to continue the tour. Legend has it that in 356 AD, the Pope dreamed of seeing the Virgin Mary, who ordered "to build a church where it snows tonight". Although it was August, the sky unexpectedly snowed, and where it snowed, the only church dedicated to the Virgin Mary in Rome was built. Thirty-six columns in the interior support a huge space, while the structure of horizontal beams supported by two rows of columns (a typical early Christian church building technique) makes the space more solemn and solemn. In the underground space in front of the church, there are large sculptures of the Pope kneeling devoutly to the Virgin Mary. Because it was the last stop and there was plenty of time, we enjoyed it easily in the church. Looking up at the golden mosaic "Coronation of the Virgin Lady" of the 13th century on the dome, looking around at the sculptures, murals, reliefs, windows and flowers. In addition to strolling on the marble floor of the church, we also sit in chairs from time to time, reading travel materials, recalling what we have seen and heard.