One of Italy’s most famous opera houses (it ranks third after La Scala in Milan and San Carlo in Naples), La Fenice was originally completed in 1792 but has been completely rebuilt twice after devastating fires; in 1837 and most recently in 2004. Self-guided tours (audioguides included) take in the opulent main theater, ornate side rooms, the gilded “royal box,” and a small exhibit dedicated to feted soprano Maria Callas. For seeing a show at La Fenice, click here.