The patroness of Sigillo is Saint Anne, celebrated on 25 July, with the church dedicated to her at the heart of the town. On the night between 9 and 10 December, instead, the Festa della Venuta is celebrated, with the lighting of large bonfires that light up the area.
Sigillo preserves traces of its history in the town hall, in the church of Santa Maria Assunta and in that of Sant'Andrea Apostolo, as well as the Ponte Spiano.
