If you can’t fit in a trip to Pompeii, Ostia Antica makes a very worthwhile substitute and even though it is right by the airport, is largely overlooked by the majority of tourists and never suffers from crowds. Ostia Antica was the main port for the city of Rome and consequently, where goods from all over the Empire were unloaded. You will see warehouses, high rise apartments for the workers and sumptuous villas for the nobility as well as baths complete with mosaics and the odd bar or two. Even the public lavatories have survived! Just outside the town, lies the beautiful castle of Pope Julius II, largely built from recycled bricks from Ostia Antica (nothing new about recycling).