In the portico of the church is a statue of Benedict XIII. (Pietro Orsini, 1724). The west door has a rich border of mosaic. The church has been so much modernised as to retain no appearance of antiquity. The fine Opus-Alexandrinum pavement is preserved. In the floor is the incised gothic monument of Lupi di Olmeto, General of the Hieronymites (ob. 1433). Left of the entrance is a shrine of S. Alessio, with his figure sleeping under the staircase--part of the actual wooden stairs being enclosed in a glass case over his head. Not far from this is the ancient well of his father's house. In a chapel which opens out of a passage leading to the sacristy is the fine tomb of Cardinal Guido di Balneo, of the time of Leo X. He is represented sitting, with one hand resting on the ground--the delicate execution of his lace in marble is much admired. The mosaic roof of this chapel was burst open by a cannon-ball during the French bombardment of 1849, but the figure was uninjured. The baldacchino (well known from Macpherson's photographs) is remarkable for its perfect proportions. Behind, in the tribune, are the inlaid mosaic pillars of a gothic tabernacle. No one should omit to descend into the _Crypt of S. Alessio_, which is an early church, supported on stunted pillars, and containing a marble episcopal chair, green with age. Here the pope used to meet the early conclaves of the Church in times of persecution. The pillar under the altar is shown as that to which St. Sebastian was bound when he was shot with the arrows. The cloister of the convent, from which ladies are excluded, blooms with orange and lemon trees. There are only six Hieronymite brethren here now. The convent was at one time purchased by the ex-king Ferdinand of Spain, who intended turning it into a villa for himself.