
National Roman Museum - Palazzo Massimo · Esquilino (near Termini Station)
Ground-floor galleries trace Roman portraiture from Republican realism to imperial image-making, including the Augustus of Via Labicana shown as pontifex maximus, alongside busts of Marcus Aurelius and Julia Domna.

Palazzo Barberini - Gallerie Nazionali di Arte Antica

Gagosian Rome

Castel Sant'Angelo - Museo Nazionale
Folegandros, Wikimedia Commons (CC BY-SA 3.0)