Roy Thomson Hall

This guide to Roy Thomson Hall in Toronto traces the acoustic disc hanging above the stage back to a two-decade complaint: musicians in the Toronto Symphony Orchestra found architect Arthur Erickson's celebrated 1982 glass shell dazzling to look at but thin and cold to hear. You'll hear what a 2002 renovation crew tore into and rebuilt over six months to fix it, from a sealed ceiling to new wooden bulkheads along the walls. The stage itself was relaid in Canadian maple during the same overhaul.