Fontana delle Tartarughe is a charming fountain located in a quiet, lesser-known square of Rome. It offers a peaceful atmosphere away from the city's busier landmarks, making it a welcoming spot for those who happen to pass by.
When the fountain was first planned, its creators envisioned four dolphins to be part of its design. However, as construction progressed, it became clear that the water pressure was not strong enough to support such large figures. Instead, turtles were chosen as a creative solution. These turtles, added later, now give the fountain its unique and memorable character.
Source - https://en.wikipedia.org/wiki/Fontana_delle_Tartarughe