Roger B. Ulrich: Opus reticulatum: Mausoleum of Augustus, Rome
Roger B. Ulrich: Brick Quoining: Pompeii Odeon
Roger B. Ulrich: Opus incertum*: Pompeii: Odeon
Roger B. Ulrich: Cosa: Polygonal Walls
Roger B. Ulrich: Alba Fucens: Polygonal Masonry
Roger B. Ulrich: Alba Fucens: Polygonal Masonry
Roger B. Ulrich: Pietrabbondante: Polygonal Masonry
Roger B. Ulrich: Signia/Segni: podium of the Capitolium
Roger B. Ulrich: Polygonal Masonry at Signia/Segni: Capitolium
Roger B. Ulrich: Signia/Segni: Polygonal Fortification Wlls
Roger B. Ulrich: Trajan's Column LXXII/XCIX: Danube Bridge
Roger B. Ulrich: Opus Incertum: walls at Alba Fucens
Roger B. Ulrich: Opus Incertum: sanctuary of Ercole Curino
Roger B. Ulrich: Opus Quadratum: Jupiter Optimus Maximus (Rome)
Roger B. Ulrich: Opus Incertum: Terracina
Roger B. Ulrich: Opus Incertum: Cosa Basilica
Roger B. Ulrich: Early Barrel Vault: Terracina
Roger B. Ulrich: A "flat arch" from Pompeii (Forum)
Roger B. Ulrich: Opus Incertum: Cosa: the Civic basilica.
Roger B. Ulrich: Ostia: Capital from an Early Christian Church
Roger B. Ulrich: "Flat Arch;" travertine use: Forum of Julius Caesar (Rome)
Roger B. Ulrich: "Tabernae" in the Forum Iulium
Roger B. Ulrich: Temple of Venus Genetrix: Entablature
Roger B. Ulrich: Pompeii: opus vittatum mixtum
Roger B. Ulrich: House of the Faun: stuccoed column
Roger B. Ulrich: House of the Faun: Corinthian (or Corinthianizing) Pilaster
Roger B. Ulrich: Gerasa: stucco decoration
Roger B. Ulrich: Pompeii: House of the Faun
Roger B. Ulrich: Pompeii: House of the Faun
Roger B. Ulrich: Window and Iron grate: Herculaneum