Bar Basso in Milan is a classic spot for Negroni lovers, known for inventing the Negroni Sbagliato by accident in the 1970s. The owner's son Maurizio still runs the bar and serves up these fizzy, fun cocktails in custom Murano glasses. With its cozy vibe and tasty drinks, Bar Basso is a must-visit for anyone looking to sip on some iconic Italian cocktails in a laid-back setting.