Narrow streets accessible only to foot traffic.  (Some areas allow residents access for cars/scooters/bicycles).

This is an amazing trip - I never dreamed I would have been able to take a trip like this (Deb's sister was at a charity auction and won a week stay in a house at Lake Como).

I now believe everyone should figure out a way to travel to some place in the world that has this kind of history.  Until you see this in person you can never fully appreciate how incredible it is.  The buildings in Rome are absolutely huge - the ruins of homes up on the hill above the Forum were mansions of incredible size and covered acres of ground.