The Basilica of St. Mary of the Altar of Heaven is a titular basilica in Rome, located on the highest summit of the Campidoglio. It is still the designated Church of the city council of Rome, which uses the ancient title of Senatus Populusque Romanus. The present Cardinal Priest of the Titulus Sanctae Mariae de Aracoeli is Salvatore De Giorgi.
The shrine is known for housing relics belonging to Saint Helena, mother of Emperor Constantine, various minor relics from the Holy Sepulchre, both the canonically crowned images of Nostra Signora di Mano di Oro di Aracoeli on the high altar and the Santo Bambino of Aracoeli .
