The basilica, which was begun in 1228, is built into the side of a hill and comprises two churches known as the Upper Church and the Lower Church, and a crypt where the remains of St. Francis are interred.
The interior of the Upper Church (no photos allowed) is an important early example of the Gothic style in Italy. The Upper and Lower Churches are decorated with frescoes by numerous late medieval painters from the Roman and Tuscan schools, and include works by Cimabue, Giotto, Simone Martini and Pietro Lorenzetti.
The Franciscan friary (Sacro Convento) and the Lower and Upper Basilicas of Francis of Assisi were begun in honor of this local saint, immediately after his canonization in 1228.
On the morning of September 26, 1997, two earthquakes hit that region of Italy in rapid succession, registering 5.5 and 6.1 respectively on the Richter scale. There was widespread devastation and many ancient buildings were destroyed or damaged. While a group of specialists and friars were inspecting the damage to the Basilica of St. Francis, an aftershock shook the building, causing the collapse of the vault. Two Franciscan friars who were among the group and two of the specialists were killed. Much of the cycle of frescoes of the life of St. Francis by Giotto in the Upper Church of the Basilica were destroyed in the collapse. The church was closed for two years for restoration.
The Basilica was designed on two levels, each of which is consecrated as a church. They are known as the "Basilica superiore" (The Upper Basilica), generally called "The Upper Church" and the "Basilica inferiore" (The Lower Basilica), generally called "The Lower Church". The Lower Church was structurally a large crypt supporting the upper one. In the 19th century a lower crypt was constructed beneath the basilica. Architecturally, the exterior of the basilica appears united with the Friary of St. Francis, since the lofty arcades of the latter support and buttress the church in its apparently precarious position on the hillside.
Halfway down the nave one can descend into the crypt via a double stairway. This burial place of St. Francis was found in 1818. His remains had been hidden by Brother Elias to prevent the spread of his relics in medieval Europe. By order of Pope Pius IX a crypt was built under the lower basilica.
Next to the basilica stands the friary (Sacro Convento) with its imposing walls containing 53 Romanesque arches and powerful buttresses supporting the whole complex. It towers over the valley below, giving the impression of a fortress. It was built with pink and white stone from Mount Subasio. It was already inhabited by the friars in 1230. But construction took a long time, with as result different styles intermingling : Romanesque with Gothic style. A major part was built under the reign of Pope Sixtus IV, a Franciscan, between 1474 and 1476.
The friary now houses a vast library, a museum with works of art donated by pilgrims through the centuries and also the 57 works of art (mainly of Florentine and Sienese schools) of the Perkins collection.
The belfry, in Romanesque style, was finished in 1239.
The following images were taken the morning of September 29, 2014. This is a beautiful basilica as can be seen in these photos. Of all the places we visited, my favorite was Assisi.