Introducing the Perfect One-Day Walking Tour of Rome

Frommers.com:

Forget the old cliche of Rome not being built in a day. If you've only got a day to do it, you can see the best of Rome. Unlike other sprawling European capitals (we're talking to you, London and Paris,) the touristic area of Rome is fairly compact, and most of it can be covered on foot. Read more.

https://www.frommers.com/slideshows/848213-introducing-the-perfect-one-day-walking-tour-of-rome