Possible Clues:

• Mason's unforgettable work
• Statue, perhaps
• Record
• Note Middle Eastern money was found at monument
• So as not to forget me, I come in a well-behaved way
• Pollsters grub about for a souvenir
• Monument such as the Cenotaph
• Note foreign money may be brass
• Tribute in new memoir to gangster
• Intend to take in historic city, climbing large monument