Ostia antica takes its name from the latin word ostium meaning mouth. According to the legend ostia would have been founded by king Anco Marzio and according to archaeologists around the end of the 5th century b.c. and the beginning of the 6th century b.c. Founded as a military base, it became an important commercial port for the supply of grain for Rome. Starting from Porta Romana and proceeding along the main road - Decumanus Maximus - we will visit the old metropolis and Piazzale della Vittoria. Next we will visit the baths of Neptune, one of the public services of the city constructed by Adriano and ornated with fine mosaics. Behind the Bath’s of Neptune, the Firemen’s barrack of the Adrian’s age. The visit will continue with the Theatre erected by Agrippa in the 1st century b.c. From the top of the staircase you have a beautiful view of the excavations. After having visited the House of Diana we will reach the centre of ostia where we will be able to admire the Forum, the political centre of Ostia, the Temple of Rome and Augustus and the Baths. The excursion will end with a visit of the Basilica: a large aula in the form of rectangle encircled by an arcade, on the right side of which we find the Round temple dating from the 3rd century.