St. Peter's, from "Speculum Romanae Magnificentiae"

Longitudinal Section Showing the Interior of Saint Peter's Basilica as Conceived by Michelangelo (published in 1569), from "Speculum Romanae Magnificentiae"

Etienne DuPérac

Elevation Showing the Exterior of Saint Peter's Basilica from the South as Conceived by Michelangelo (published in 1569), from "Speculum Romanae Magnificentiae"

Etienne DuPérac

St. Peter's, from "Speculum Romanae Magnificentiae"

Giovanni Ambrogio Brambilla, After Michelangelo Buonarroti, Claudio Duchetti, Antonio Lafreri

Cross-section of the church of Sant'Andrea al Quirinale, Rome, showing lantern, cupola, and altar

Giovanni Francesco Venturini

St. Peter's, from "Speculum Romanae Magnificentiae"

After Antonio da Sangallo, the Younger, After Antonio da Labacco, Antonio Salamanca

Design for the Basilica of St. Peter's in the Vatican, from "Speculum Romanae Magnificentiae"

After Antonio da Labacco, After Antonio da Sangallo, the Younger, Antonio Salamanca

Antonio da Sangallo's project for St. Peters, plan of the façade extended to the left with a tower

After Antonio da Labacco, Antonio Salamanca

The Pantheon, from "Speculum Romanae Magnificentiae"

Anonymous, After Nicolas Beatrizet

Sepulchre of Augustus, from "Speculum Romanae Magnificentiae"

Etienne DuPérac, Antonio Lafreri

Temple near the Appian Way, from "Speculum Romanae Magnificentiae"

Anonymous, Antonio Salamanca, Antonio Lafreri

Palatium Valerianu[m], from a Series of 24 Depicting (Reconstructed) Buildings from Roman Antiquity

Anonymous, Italian, 16th century, Previously attributed to Monogrammist G.A. with the Caltrop

St. Peter's, from "Speculum Romanae Magnificentiae"

Vincenzo Luchino