On ground level and first floor it houses a prestigious collection of important statues  such as the Discobolus Lancellotti (Discus Thrower), the Augustus via Labicana, the bronze Boxer, the General from Tivoli, the Dying Niobide (V BC), the Girl of Anzio, bronze ornaments from the Nemi ships.

On second floor a variety of extraordinary frescoes representing the height of Roman painting, among which the painted garden of the Villa of Livia from Prima Porta  (see VILLA DI LIVIA) and the reconstructed cubicola of Villa Farnesina, as well as extensive polychromatic mosaics of the highest quality.

In the basement the recenlty-found and unique imperial insignia of emperor Maxentius (sometimes away for exhibitions), the Grottarossa mummy and the largest numismatic collection in the world.

Duration: 3 hours

Entrance ticket: 10 euro; 2 for EU students under 25; free under 18.

Closed on Mondays.

A 3-days ticket is available for 15 euro and it includes one admission to each of the four sections of the Roman National Archaeological Museum: Palazzo Massimo, Palazzo Altemps, Crypta Balbi, Terme di Diocleziano.