Since then the Gregorian University has occupied new quarters, but the buildings on this full square block memorialize the early commitment of the Society of Jesus (Jesuits) to education. With the burgeoning student population the Jesuits in 1626 replaced the chapel of the Annunziata with the church of St. Ignatius on the premises. In 1787 the college added an observatory that became preeminent. With the Capture of Rome in 1870, the building was taken over by the Italian government. Currently, its eastern wing houses the headquarters of the Ministry of Heritage and Culture (with entrance on Via del Collegio Romano) and the wing that overlooks the square is home to the high school Ennio Quirino Visconti.