Looks like no one added any tags here yet for you.
Roman, republican, temple of Portunus, Rome, 75 BCE
Roman, Republican, atrium of the house of the vetii, Pompeii, Italy, second century BCE
Roman, Imperial, colosseum, Rome, Italy, 70-80 CE, concrete tufa, travertine, marble
Roman, imperial, Severus and Celer, octogonal hall, golden house of Nero, Rome, Italy 64-68 CE
Roman imperial, Hadrian, the pantheon, Rome 118-125 CE
Roman imperial, Apollodorus of Damascus, forum of Trajan and markets of Trajan with peristyle courtyard, equestrian stature, basilica ulpia, column and temple of Devine Trajan
Roman imperial baths of Caracalla, Rome 212-216 CE