When Annia Galeria Faustina died in 141, her husband, Roman Emperor Antoninus Pius, began construction of this massive temple in her honor. Upon his death 20 years later, it was renamed the Temple of Antoninus and Faustina. Those ten massive columns stand 56 feet high. During the early 7th century, it was repurposed as the San Lorenzo in Miranda church. St. Lawrence was a deacon when he was martyred in 258 by Emperor Valerian. According to legend, he supposedly hid the Holy Grail or the chalice from the Last Supper from the Romans.