See main article: Roma-class ironclad. Venezia was 79.65m (261.32feet) long between perpendiculars; she had a beam of 17.48m (57.35feet) and an average draft of 7.6m (24.9feet). She displaced 5722LT normally and up to 6151LT at full load. Her propulsion system consisted of one single-expansion steam engine that drove a single screw propeller, with steam supplied by six coal-fired, cylindrical fire-tube boilers that were vented through a single funnel. Her engine produced a top speed of 13kn from 3670ihp. She could steam for 1940nmi at a speed of . The ship was barque-rigged to supplement the steam engine. She had a crew of 549 - 551 officers and men.
Venezia was designed as a broadside ironclad, but other navies had developed the central battery ship while she was under construction, prompting the Italian Navy to re-design the ship. She was armed with a main battery of eighteen 100NaN0 guns placed in a central casemate. The central battery design allowed two guns to fire ahead and two to fire astern. The ship was protected by iron belt armor that was 5.90NaN0 thick and extended for the entire length of the hull at the waterline. The casemate was protected with 4.750NaN0 of iron plating.
Venezias keel was laid down at the Cantiere della Foce shipyard in Genoa in February 1863, and her completed hull was launched on 21 January 1869. Fitting-out work was completed on 1 April 1873; the re-design work significantly delayed completion compared to her sister, which had been finished almost four years before. Despite being completed as a central battery ship, Venezia nevertheless rapidly became obsolescent, as the type was superseded by new turret ships like the begun the same year she entered service. In addition, the Italian naval budget was drastically reduced following the defeat at Lissa in 1866, which reflected a stark decrease in the government's confidence in the fleet. As a result, she saw little use during her career.
The ship's first major activity came soon after commissioning, serving as the flagship of Rear Admiral de Monale. In mid-1873, she several other Italian warships sailed to Spain during the Cantonal rebellion, along with a significant number of warships from other countries. In September, she and the aviso were anchored off Escombreras, along with the British ironclad and gunboats,, and, and the Austro-Hungarian gunboat .
On 23 November 1879, Venezia ran aground off Zakynthos, Greece,[1] but she was later refloated. Venzia was converted into a torpedo training ship in 1881; her sailing rig was cut down and she was equipped with four guns and four 57mm guns. Her crew was significantly reduced to 302 officers and men. She served in this capacity until 23 August 1895 in La Spezia. The ship was stricken that year and had been broken up by 1896.