Piazza Navona is a crowded place. People go there to see the Fontana dei Fiumi, a work of Bernini. This is a fountain using 4 different sculptures to represent four different rivers from different continents, and an obelisk stands in the middle. The four rivers are the Nile representing Africa, the Danube representing Europe, the Ganges representing Asia, and the Río de la Plata representing the Americas.
Can you identify which is which?