The Church of St Silvestro 

 The Church of St Silvestro was founded between the end of the Eleventh century and the start of the Twelfth century. It was initially realised with an only nave which ended with an apse but then, in 1331, it was expanded and a left nave was added. During time, it has been renovated several times: the inside is in a Romanesque style, in fact it was originally covered in frescos, lost during the numerous renovations and the bombardments of the Second World War. On the right wall of the presbytery, some frescos, dating back to the following centuries, are still visible today. They illustrate St Sebastian and, St Lorenzo and St Antonio Abate. There is also a Virgin with the Child. On the inside of the presbytery there is a triptych illustrating the Deposition of Christ inside the Sepulchre. A rock staircase leads to the crypt, located under the presbytery, with its marvellous cross vault that dates back to a period far previous to the construction of the Church. Inside the crypt the most ancient fresco of Alatri, dating back to primitive archaism, can be admired.