Bronze colossus of Constantine

The museum also holds fragments from an acrolithic Colossus of Constantine, an even larger marble statue once erected in the Basilica of Maxentius near the Forum Romanum, which are displayed in the courtyard of the museum's Palazzo dei Conservatori on the Capitoline Hill.

Much of the statue is missing: many bronze panels may have been melted down in late antiquity or the Middle Ages.

The missing end of the index finger, about 38 cm (15 in) long, was rediscovered in 2018 in the collection of the Louvre Museum in Paris (inv.

The orb and the other fragments are now held in the Capitoline Museum, and displayed in the Exhedra of Marcus Aurelius, a glass pavilion constructed in the 1990s to house the original gilt-bronze equestrian statue of Marcus Aurelius after it was restored (with its place in the Piazza del Campidoglio taken by a replica), along with a gilt-bronze statue of Hercules found in the Forum Boarium.

Contemporary (4th century) smaller marble statues of Emperor Constantine can be seen at the entrance to the Quirinal Palace and in the narthex of the church of San Giovanni Laterano.