SYDNEY OPERA HOUSE (AUSTRALIA)

The Sydney Opera House, inaugurated by Queen Elizabeth II on October 20, 1973, took 14 years to complete instead of the expected four. Commencing in 1959, it engaged 10,000 construction workers. Notably, the Concert Hall maintains a precise temperature of 22.5 degrees to keep instruments in tune when the Sydney Symphony Orchestra performs. This iconic multi-venue performing arts center graces Sydney's foreshore, gaining global recognition as one of the 20th century's architectural masterpieces. Widely celebrated for its distinctive design, the Sydney Opera House remains a cultural gem, admired for both its history and its continuing artistic contributions.