Trevi Fountain fountain was equipped with recirculating pumps. In January 2013, it was announced that the Italian fashion company Fendi would sponsor a 20-month, 2.2-million-euro restoration of the fountain; it was to be the most thorough restoration in the fountain's history. Restoration work began in June 2014 and was completed in November 2015. The fountain was reopened with an official ceremony on the evening of November 3, 2015. The restoration included the installation of more than 100 LED lights to improve the nighttime illumination of the fountain. The backdrop for the fountain is the Palazzo Poli, given a new façade with a
Trevi (rione of Rome) part. The urbanization followed the people: next to the river Tiber the rione was full of buildings while almost nothing was built again on the hills until the Renaissance. In 1600 urbanization, new streets, churches and fountains caused the rione Trevi to be quite crowded, and it did not change sensibly until the end of the 19th century. The Quirinal Hill, partially isolated from the crowded part close to the river, was slowly becoming a center of power thanks to numerous buildings belonging to the Pope. Under the domination of Napoleon, in 1811, the Quirinal Hill was selected to be