This understated square has since 1792 been the site of one of the world’s leading opera houses. Burnt down in 1996, its two façades and entrances (one giving directly onto a canal) are again standing. Whilst updating the theatre (recital and chamber music rooms), Aldo Rossi has preserved the superb concert hall with its green ceiling, stucco work and caryatids, as well as its foyers lit by Murano chandeliers and decorated with phoenix-themed tapestries.