Piazza Navona is one of the most beautiful and famous squares in Rome, Italy. It is situated in the heart of the historic center of the city and has been a popular meeting place and market since the 15th century.

The square's unique shape is due to the fact that it was built on the site of the ancient Stadium of Domitian, which was a venue for athletic contests and other public events. The stadium was transformed into a public square in the 15th century and was later embellished with magnificent Baroque buildings and fountains during the 17th and 18th centuries.

One of the most impressive features of the Piazza Navona is the trio of magnificent fountains that adorn it. The central fountain, known as the Fountain of the Four Rivers, was designed by Gian Lorenzo Bernini in the mid-17th century and features four figures representing the four great rivers of the world. Another beautiful fountain is the Fountain of Neptune, which was designed by Giacomo della Porta in the late 16th century.

The square is also home to several impressive Baroque buildings, including the Palazzo Pamphilj and the Church of Sant'Agnese in Agone. The latter was designed by Francesco Borromini and was completed in the mid-17th century.

Piazza Navona remains a popular destination for both locals and tourists, with its lively atmosphere, street performers, and outdoor cafes.