Anzio is a resort town and comune in the Lazio region of Italy, about 51 kilometres (32 mi) south of Rome.
Well known for its seaside resorts, it is a fishing port and a departure point for ferries and hydroplanes to the Pontine Islands of Ponza, Palmarola, and Ventotene. The town bears great historical significance as the site of Operation Shingle, a crucial landing by the Allies during the Italian Campaign of World War II.
Along the coast are numerous remains of Roman villas. One, the Domus Neroniana, has been identified as a residence of Nero (the villa was subsequently enlarged by Domitian, Hadrian and Septimius Severus); he and Caligula were born in Antium and, according to Giuseppe Lugli, right there ("one or more villas of the Julia gens"). There are also the ruins of the villa of Cicero.
In Anzio can be found the Anzio War Cemetery, located close to the Communal Cemetery and Beachhead Museum. The Beach Head War Cemetery is located 5-kilometre north on No207 Road. The Sicily-Rome American Cemetery and Memorial is in nearby Nettuno.
About 8 kilometres (5 miles) north of the town there is a WWF park with sulphur springs and a medieval tower, Tor Caldara.
Near the ruins of the Villa of Nero, in scenic position near the beach, lies the military sanatorium of the Italian Army, one of the most important works of Florestano Di Fausto, built-in 1930–1933.
All along the coast a large number of beaches and sea resorts can be found, including hotels and the famous fish restaurants of the port of Anzio. The town once hosted a Casino called Paradiso sul mare, that is no longer active and now hosts cultural events. In the southern part of Anzio, close to the border with Nettuno, are many Italian Art Nouveau style houses.