Answer:
Some of the famous pieces or rather major works are : Le nozze di Figaro (1786)
Don Giovanni (1787)
Cosí fan tutte (1790)
Die Zauberflótte (1791)
That includes 21 piano concertos, 5 violin concertos, concertos for clarinet and other wind instruments. 41 symphonies, 24 string quartets, other chamber music and 17 Masses.