Possible Clues:

• Setting for 'Coriolanus'
• Place to emulate the locals, proverbially
• Piazza Navona site
• The Pope's city
• ''. . . the grandeur that was ___''
• ''Julius Caesar'' setting
• Italian destination in "The Lizzie McGuire Movie"
• Forum city
• Italian capital (where one Ac died)
• Vatican's home