This fountain is a sort of tribute to the Roman god of the oceans, Neptune(Oceanus). Emerging out of his home underwater, on a sea shell drawn by two horses(winged) is Neptune. The statues in the coloumns represent the celebration of life.The statue to the left of the central arch is Agrippa commissioning the building of the Aqua Virga. The statue to the right of the arch is the virgin(who showed Agrippa's soldiers the location of the source of the spring that would eventually supply the aqueduct which is still used by The Trevi Fountain).In the alcove to the left of the arch is a statue representing fertility and in the right alcove is another depicting good health. One of horses drawing the sea shell is headstrong, whereas the other is docile. This indicates both the calm and violent nature of water.
A glorious piece of architecture, The Trevi fountain, receives hundreds of visitors every day and even in the night.
Don't forget to throw a coin over your shoulder( facing away from the fountain), to confirm your next visit to Rome.
Advice: Visit this marvelous fountain two times, if you get time. Once in daylight to enjoy the construction. Once more in the night to see it in the lights.
Getting there: The metro takes you to Fontana di Trevi from Roma tremini.