Gothic and Roman architecture are similar:

Yes, the Pantheon would not only count as Roman architecture, but it would count as a masterpiece of Roman architecture.

William Hugh Plommer has written:

'Ancient and classical architecture' -- subject(s): Ancient Architecture, Architecture, Ancient, Architecture, Greek, Architecture, Roman, Greek Architecture, Roman Architecture

Renaissance architecture (14th and 15th centuries), Baroque architecture (16 & 17th centuries) and Neoclassical architecture (18th and 19th centuries) were modeled on Roman architecture.