Pula Arena

One of the six largest Roman amphitheatres still standing, and the only one with all four side towers intact, built in the 1st century AD in Pula on the Istrian peninsula. It once held 20,000 spectators and is still used for concerts and a film festival in summer. The underground passages have a museum of ancient olive oil production.

Pula also has the Arch of the Sergii and the Temple of Augustus. Nearby, Brijuni National Park is a group of islands with Tito's summer residence and a safari park.