The document provides an overview of notable examples of Roman architecture from different periods, including amphitheaters and forums in Pompeii and Rome. Key structures mentioned are the Pompeii Amphitheatre, Pont-du-Gard aqueduct in Nimes, Ara Pacis altar in Rome, House of the Vettii and Colosseum in Rome, Trajan's Forum and Column in Rome, the Pantheon, and the Arch of Constantine.