Pianta di Roma
Istituto Geografico de Agostini
Circa 1910

Extra large wall map (76x52 in)

At the Harvard Map Collection

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Shows different spatiotemporal layers:

ONE, the existing 1910-era city, with streets, rail, fortifications, floor plans of major buildings, topography, trees (at least in some areas), river and canals, etc.

TWO, proposed new streets, rail/trolley lines, canals, parks, and buildings.

THREE, archaeological discoveries, and (most unusually) projected archaeological discoveries (meaning, ruins archaeologists expected to find but hadn’t yet).

The blue trolley lines below are proposed, while the tan ones are real (or were in 1910).

Religious buildings, like St. Peters, are shown with their ground floor plan. This device is in keeping with the famous 1748 Nolli map of Rome.

In a cartographic flourish, the Colosseum is presented with topographic shading, as if it were a natural part of the city's undulating physiography.

In the Baths of Caracalla, below, the transparent sections are “projected” ruins: presumed to exist, or have existed, but not yet found and excavated.

More details: below, the areas around the Piazza del Popolo, and also around the Pantheon.

Below, rail bridges over the Tiber and a proposed cargo transfer station.

Below, a proposed new rail terminal next to the Pyramid of Cestius.