I have chosen three different piazza's to go to, during one walk. I have combined my two themes, which are street entertainers and piazza's so one is able to explore and take away different things from each place on the walk. By starting the walk at Piazza Maria in Trastevere, you can check out the small square that is surrounded by local restaurants, bars and an octagonal fountain that was built in the late 17th century. In the evening, you are almost guaranteed to see a variety of entertainers, including magicians, jugglers and many vendors. This is not one of the three places; I just think it's a bonus, if you start at this fun little piazza.
Depending on the time of day that you visit Campo de' Fiori, you will have many different experiences. If you decide to take a morning walk, the food market that takes over the piazza during the morning and early afternoon will likely amaze you. However, if you happen to stroll along through Campo in the evening, or nighttime, the square is filled with numerous violinists and entertainers who may even put on a show for you will you enjoy a nice dinner outside. Here you will also find the statue of Giordano Bruno, who was burned to a stake in middle of the piazza.
Piazza Navona is a rather lively place, where you can find three beautiful fountains. Bernini designed the one fountain, Fontana dei Quattro Fiumi. Fontano di Nettuno is found at the northern end of Piazza Navona, which was sculpted by Giacomo della Porto, who also first sculpted the Fontano del Moro. However, Bernini ended up remodeling the Fontano del Moro. In addition to the fascinating fountains, the center of the piazza is always full of talented vendors who sell their artwork of portraits and landscapes.
At the final stop of the guided walk, you will find yourself at the Piazza della Rotonda, where the Pantheon is located. The Pantheon is one of the Rome's best-preserved ancient temples, which holds the tomb of Raphael. It is a very busy piazza, which is surrounded by restaurants and cafes. There are always a lot of people but beware of the vendors who will consistently ask you to buy cheap and annoying toys. I hope you enjoy this fun and historic walk! Remember to save at least two or three hours, to be able to see and appreciate everything you may stumble upon.