Gabi P.
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Very recommended. It was built 16-15 year b.C by consul Marco Agripa. It was to around 6000 people.
It’s like Roma in small scale but better because it is in a very good state. There is a ticket without guide to visit the full monumental complex: Roman Theatre, Circus, Moreria Arqueological Area, Mithraeum House, Columbarium, Alcazaba, Anfiteatre and House, Diana Temple. All of this for only 17€ per person (normal fee).