This is the top spot in Assisi, and of course everyone goes here, as it has incredible art and a fascinating history.
Upon arriving, you are grouped into tours. The church is a working church, and Mass occurs frequently. Therefore, you are required to wear a special headset on a tour, which allows your guide to just whisper quietly and allow you to hear clearly. These headphones work very well, though they can become uncomfortable.
Our group was greeted by a monk, Brother John, from Zambia. Before we entered, we were given an introduction about the construction of the basilica. Work was started on it only a few years after Francis' death. He was canonized almost immediately, and work began on the church since it was important to prepare a place to protect the relics, the bones of St. Francis. There was much concern that they might be stolen if not protected, and indeed they were ultimately cased in concrete and remain at the basilica in that state.
There are two churches, the lower one in Romanesque style and the upper in Gothic style. Both are covered with frescos and both are immense. When we entered the lower church, there was a Mass in progress, as I mentioned.
A Cinambue fresco, all that is left from the original decoration of the lower and earlier church, presents a portrait of Francis that is believed to be very much like what he looked like since Cimabue knew Francis during his life. Most of the rest of the frescos in the lower church are by Giotto, which replaced earlier Cimabue frescos. These compare events from the life of Francis to events from the life of Christ, including legends that they were both born in a stable, etc.
After we visited the lower church, we saw a room of relics. There were not many of course, but there was an over and undergarment, the original Franciscan Rule, and a chalice and paten.
Then we came out into a beautiful courtyard, looking out over the Umbrian landscape. It is a place the popes would come for summer retreats and also where they hid when the antipopes were searching for them. Off this courtyard is the gift shop, which we did not visit. We then toured the upper church. This church has a lot of scenes from the life of Francis, plus it has, above them, scenes from the life of Jesus and above those scenes from the Old Testament, drawing all three sources together into one. They were preparing for a musical concert in that church. Evidently it is not much used for Mass, as most of the Masses occur in the lower church, but it is used for events, since they do not have a theatre. We could see the considerable damage to the frescos that resulted from the earthquake in 1997.