One of the more interesting 'new' stories out of Rome is the design of the fountain here. The piazza is built on the sight of Diocletian's baths and still retinas the semicircular curve of them (thus its old name - Piazza Esedra - for following this curve called the exedra).
The Fountain of the Naiads displays 4 nude water nymphs, all around the fisherman Glaucus who is struggling with a fish, symbolizing man's domination of nature. The fountain was built in 1901 and was the source of much hand-wringing and consternation. The blatant sexuality of the shimmering, water drenched naked nymphs was almost too much for the city!