Free Walking Sightseeing Tour #6 in Rome, Italy

The Rocca di Ostia, or Castle of Julius II, is a medieval fort located at the southwestern end of the village of Ostia Antica, in the municipality of Rome. The site is owned by the Ministry of Culture and is managed by the Archaeological Park of Ostia Antica.

Wikipedia: Rocca di Ostia (IT)

The Roman theatre of Ostia was built in the Augustan age and remodeled at the end of the second century. In the numbering given to the buildings in Ostia by the excavators in the post-war period, it corresponds to II, VII, 2. It was built in the area that in the Republican age had been delimited for public use by the urban praetor of Rome along the Tiber, east of the walls of the republican castrum. In the Augustan phase it could accommodate 3000 spectators, which became 4000 after the reconstruction.

Wikipedia: Teatro romano di Ostia (IT)

The Forum of Corporations, or the Piazzale delle Corporazioni, was the principal center of commerce and trade for the Roman Empire mainly during the Age of Augustus. Located in the major port city of Ostia, this open-air market was essential for Rome as a place of varying and exotic goods from foreign lands. Merchants gathered here to sell anything from grain and shipping services to elephants and giraffes.

Wikipedia: Piazzale delle Corporazioni (EN)

The Terme del Foro can refer to: Terme del Foro di Cuma; Terme del Foro di Ercolano; Terme del Foro di Ostia; Terme del Foro di Pompeii.

Wikipedia: Terme del Foro (IT)

Gaius Cartilius Poplicola was a member of an influential family of the 1st century BC in Ostia.

Wikipedia: Gaius Cartilius Poplicola (DE), Website