General view
by CORTONA, Pietro da, Photo
Cortona’s major late architectural work is the dome of San Carlo al Corso, the Milanese national church in Rome. Its drum shows a brilliant version of the motif of screening columns. Structurally, the buttresses faced with pilasters and adjoining columns form a unit, but aesthetically the rhythm of the buttresses predominates and seems accompanied by that of the open, screened bays.
The photo shows the a view from the top of the Spanish Steps. In the foreground is the dome of San Carlo al Corso, while in the background the dome of St. Peter’s can be seen.