Interesting sculptures showing 4 rivers known in 1600's. Uruguay's Rio de la Plata is the surprise river only because other big rivers like the Amazon had not been discovered yet. It can be on the walking route to the Pantheon& Trevi Fountain.
An interesting square where artists set up easels and offer paintings for sale. If you have time check out the ruins of the original entrance to this piazza when it ws a race track A.D. 80.
If you own or manage Fountain of the Four Rivers, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.