Palazzo Altemps — where Greek beauty meets Renaissance frescoes near Piazza Navona

MNR's sculpture museum: Ludovisi Throne (5th c. BC — Aphrodite rising from the sea, transparent wet drapery unsurpassed after 2,500 years). Galatian Suicide (Gaul killing himself to avoid capture). All in a 15th-century cardinal's palace with frescoed ceilings. €10 combo covers 4 museums. Zero queue.