The Roman antiquities, t. 3, Plate XVI. Plan and section of the Mausoleum of S. Emperor Constantine`s mother Helena ta, on the Via Labicana. , by giovanni battista piranesi , design , Neoclassicism style , from the series Le antichità Romane , Rome, architectural drawings
A drawing of a building with a circle above it.
A black and white drawing of a building. There is a large circle above the building. The building has arches on the front of it. 