Forma Urbis Romae

[2] Created at a scale of approximately 1 to 240 (Cadario states 1:260 to 1:270), the map was detailed enough to show the floor plans of nearly every temple, bath, and insula in the central Roman city.

Part of the excavated plan showed a portion of the Forum of Augustus, interpreted as "a working drawing or as a proof of the existence of a more ancient Forma Urbis.

In the second half of the 20th century, thanks to the works and publications of Guglielmo Gatti, Lucos Cozza, and Emilio Rodríguez Almeida, several fragments of the plan have been identified and located.

[citation needed] Other scholars (e.g. Claudia Cecamore, Filippo Coarelli, Daniele Manacorda, Domenico Palombi, Luigi Pedroni, and others) have re-interpreted the topography depicted on many fragments.

A new piece of Forma Urbis Romae that completes the words "Circus Flaminius" was uncovered in 2014 at the Palazzo Maffei Marescotti, a building owned by the Vatican.

Reconstruction of part of the Forma Urbis with cavea of theatrum Pompei shown.
The wall where the map was originally mounted