FERSENO, a large Etruscan city, destroyed totally by Romans (why, not usual behavior of Romans). FERSENO or FERSENIUM was constructed at the same place by Romans.

 

 
Ferseno ruins are near north of How to get there.  
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    the central picture shows where to turn right.
The right picture shows the location of the turn.
               
  The main attraction, Roman Amphitheatre                
    Traditionally amphitheaters were rarely built of stone. Because of the social criticism of the performances, the Romans amphitheaters were built of wood to be easily destroyed.                
  questions we ask                  
                     
  what are the three, very regular rings