The Basilica of St. Mary of the Altar of Heaven (Latin: Basilica Sanctae Mariae de Ara coeli al Campidoglio, Italian: Basilica di Santa Maria in Ara coeli) 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 Sancta Mariae de Aracoeli is Salvatore De Giorgi.