The Doge's Palace was not a residence — it was a STATE MACHINE. Government chambers, courtrooms, prisons, armory, the Doge's apartments — all in one Gothic-Renaissance building on the waterfront. For 1,100 years (697-1797), 120 consecutive doges governed the Most Serene Republic of Venice from here — controlling trade routes from the Adriatic to Beirut, maintaining a navy of 3,000 ships, and running the most sophisticated intelligence network in Europe. The Sala del Maggior Consiglio (Great Council Hall) holds Tintoretto's Paradise (1588-92) — 22m × 7m, the LARGEST oil painting on canvas ever made. Below the palace: the prisons. Between them: the Bridge of Sighs (Ponte dei Sospiri, 1600) — the last view of Venice that a condemned prisoner would see.
The courtyard: The Scala dei Giganti (Giants' Staircase) — where every new doge was crowned, flanked by Sansovino's Mars and Neptune (war and sea = Venice's two powers). The state rooms: Sala del Maggior Consiglio (Great Council) — 53m long, every wall and ceiling painted by Veronese, Tintoretto, and workshop. Tintoretto's Paradise: The entire back wall. 500+ figures. Christ and Mary at center, surrounded by ALL the saints. 22m × 7m. Stand at the far end. The painting FILLS your vision. Sala del Senato. Sala del Consiglio dei Dieci (Council of Ten — Venice's SECRET POLICE, the most feared intelligence agency before the modern era). The Armory: 2,000+ weapons — the arsenal of a republic that fought the Ottomans for 300 years.
The prisons + Bridge of Sighs: Cross the bridge (enclosed, two small windows) from the palace to the Prigioni Nuove. The "sighs" were the prisoners' last breath of free air. Casanova was held in the Piombi (lead-roofed cells above the palace — HOT in summer, cold in winter) and escaped in 1756 through the ceiling, across the roof, back into the palace, and out the front door. The Itinerari Segreti (Secret Itineraries) tour: €28 — accesses the Piombi, the Council of Ten's secret rooms, the Inquisition chamber, the torture room. Book ahead. The regular ticket doesn't include these.
Piazzetta San Marco. €30 (includes Museo Correr, Museo Archeologico, Biblioteca Marciana). Open 9-18 (summer until 21). Secret Itineraries: €28, guided, BOOK at palazzoducale.visitmuve.it — limited groups, sells out weeks ahead in summer. 2-3 hours minimum. Venice →