我想了解一下 Trevi喷泉的历史和背景，可以用英语回答，涉及罗马的历史即可。请将回答控制在6句话以内。
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Trevi Fountain, a masterpiece of Roman Baroque art, was designed by architect Nicola Salvi and completed in 1762. Its most prominent feature is the statue of Oceanus, a personification of the sea. The fountain stands at the junction of three roads, which is the origin of its name "Trevi", meaning "three roads". It replaced an earlier fountain and was part of an ancient aqueduct system that brought water to the city since the 1st century BC. Throwing a coin into the fountain is said to ensure a return trip to Rome. Over 3,000 euros in coins are thrown into the fountain each day, which are collected and donated to charity.
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