I've been in Rome many times,besides all the spectical of the museums and art galleries historic sites, the trevi fountain, the wedding cake, Spanish Steps,Colliseum,all the piazzas,not to mention the best Ice cream in the world, there are lots of flea markets, really great value, but be very careful !! No shortage of people pinning you to the wall and riffling your pockets for what they can get.BE VERY AWARE OF THESE PEOPLE, THEY ARE DANGEROUS !
Otherwise The Eternal City is the most Fantastic City of all ! Enjoy.