To understand where you are, we have to look at what was lost. In the year 1348, a massive earthquake devastated Rome, leaving this basilica in ruins. For nearly a century, it sat derelict until Pope Martin the Fifth, a member of the Colonna family whose palace still stands next door, began a massive reconstruction in 1417. This began a new era for the church as the mother house of the Conventual Franciscan Order. As you enter, the sheer scale of the Baroque interior is breathtaking. The ceiling fresco you see above you, titled 'The Triumph of the Order of Saint Francis,' was painted by Baciccio, also known as Giovanni Battista Gaulli, in the early eighteenth century. It is a masterpiece of illusion, designed to make the roof seem as though it is opening directly into the heavens. A practical pointer for your visit: the church usually closes for a midday break between twelve o'clock noon and 4 p.m., so it is best to plan your exploration for the morning or late evening hours.