 Many widely renowned and acclaimed bands have originated in Helsinki, including Nightwish, Children of Bodom, Hanoi Rocks, HIM, Stratovarius, The 69 Eyes, Finntroll, Ensiferum, Wintersun, The Rasmus, Poets of the Fall, and Apocalyptica.The city's main musical venues are the Finnish National Opera, the Finlandia concert hall, and the Helsinki Music Centre.The Music Centre also houses a part of the Sibelius Academy.