The mayor of Rome is appealing for international donors to help restore Italy's ancient city. He says more than $250m is needed for landmarks at risk and the city doesn't have the cash. Al jazeera's Tim Friend reports from the Italian capital. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website http://www.aljazeera.com/