We travel writers, as you can imagine, regularly get questions from people going on holiday. But when someone referred to me by a dear friend asked what she should not miss when she goes to Italy's capital for all of one weekend, I wanted to ask her – “ma sei pazza??” (Are you nuts?) You could spend every waking hour for weeks barely scratching the surface of this breathtaking city with a history stretching back nearly 3,000 years, so trying to truly capture la Città Eterna in a mere 48 hours