This Saturday-focused itinerary explores Rouen's finest museums and Gothic treasures. Start at the Palace of Justice, one of France's most impressive civil Gothic buildings, then descend underground to discover the Maison Sublime - the oldest Jewish monument in France, dating to 1100 CE. Continue to the Flamboyant Gothic Saint-Maclou Church and its adjacent Aître Saint-Maclou, a haunting medieval plague cemetery with macabre carvings. Conclude at the Museum of Fine Arts, home to the largest Impressionist collection outside Paris including Monet's famous Rouen Cathedral series, and the unique Le Secq des Tournelles Museum housing the world's largest collection of antique ironwork. Important: Saint-Maclou Church opens weekends only (10:00-17:00 with midday break). Maison Sublime requires advance booking for Saturday tours (10:30 or 14:30). Museums are closed on Tuesdays. Le Secq des Tournelles opens afternoons only (14:00-18:00). Total walking distance: approximately 2 km.