The Arch of Titus, from "Speculum Romanae Magnificentiae"

Arch of Titus, from "Speculum Romanae Magnificentiae"

Anonymous, Antonio Lafreri

Arch of Septimius Severus, from "Speculum Romanae Magnificentiae"

Anonymous, Italian, 16th century, Claudio Duchetti

Arch of Septimus Severus, from "Speculum Romanae Magnificentiae"

Anonymous, Nicolaus van Aelst

The Arch of Constantine, Rome, from "Speculum Romanae Magnificentiae"

Attributed to Agostino Veneziano (Agostino dei Musi), Antonio Salamanca

Arch by Master GA with the Caltrop, from "Speculum Romanae Magnificentiae"

Monogrammist G.A. with the Caltrop

Arch of Constantine, Rome

attributed to Bartolomeo Neroni (Il Riccio)

Arch of Constantine, from "Speculum Romanae Magnificentiae"

Anonymous, Antonio Lafreri, Antonio Lafreri

View of the Arch of Constantine

Jan Goeree

Porta Maggiore, from "Speculum Romanae Magnificentiae"

Anonymous, Antonio Lafreri

Triumphal arch surmounted by woman seated on a dolphin, four standing figures below, a temporary decoration for the entry of Pope Clement VIII in Bologna in 1598

Guido Reni

Arch of Constantine, from "Speculum Romanae Magnificentiae"

Anonymous, Claudio Duchetti, Antonio Lafreri

Arch of Septimius Severus, Rome

attributed to Bartolomeo Neroni (Il Riccio)