This small fountain, located a bit away from the most popular tourist areas, continues to charm visitors by the romantic tale that has been told of its construction since the late 16th century. You also might have seen it in the movie The Talented Mr Ripley.
The fountain is rumoured to have been built during a single night on orders of a lovesick Roman duke, who wanted to convince the father of his darling that he deserved her hand.
Designed by architect Giacomo della Porta, the fountain was originally decorated by sculptures of boys holding up dolphins. The iconic turtles that it gets its name after were only added during a reconstruction several years later. They may have been sculpted by Lorenzo Bernini himself.
Wikipedia https://en.wikipedia.org/wiki/Fontana_delle_Tartarughe
Address Piazza Mattei, 00186 Roma, Italy
Coordinates 41°53'37.743" N 12°28'39.275" E