Quartiere Coppedé is an unexpected and bizarre area in Rome, nestled within the Trieste district in the northern part of the city. The fantastical mix of Ancient Greek, Roman Barroque, Manieristic, Medieval, and, overall, Art Nouveau mishmash was brought to life by architect Coppede in 1919 (from whom the quarter itself takes its current name). Coppede worked on the quarter from the late 1910s until his death in 1927.
Though the Art Nouveau palaces of Quartiere Coppedé, featuring floral, mythological and medieval details, are abundant, there is plenty of space for the fantasies of Coppede in this vast area. "The 31,000 square meters of the quarter (with some 40 structures) are alive with Florentine towers and Venetian palazzi decorated with external mosaics and frescoes, Baroque Roman palazzi with real and imitation papal stemmata, a sundial, and even a building devoted to a musical decorative scheme whose exterior ironwork and carvings imitate musical notation." (a href="http://everything2.com/title/The+Quartiere+Copped%25E8%252C+Rome">Source)
Thanks to its strange beauty, the Quartiere Coppedé has been used as the setting for a number of films, and is a whimsical way to leave the beaten path of Rome sightseeing.