+ Metropolitan Opera House #1 World Opera Stage NADIA KOVARSKAYA, September 5, 2018September 5, 2018, Uncategorized, Anna Netrebko, Luciano Pavarotti, Metropolitan Opera House #1 World Opera Stage, Nadia Kovarskaya, Plácido Domingo, www.MeetMeAtTheOpera.com, 0 The Metropolitan Opera House #1 World Opera Stage is among the most powerful cultural institutions in the world of opera....