Sydney's largest pedestrian precinct, flanked by banks, offices, and shopping centers, is the hub of the central business district. There are some grand buildings here—including the beautifully refurbished Commonwealth Bank and the 1870s Venetian Renaissance-style General Post Office building with its 230-foot clock tower (now a Westin hotel). Toward the George Street end of the plaza the simple 1929 cenotaph war memorial commemorates Australians who died in World War I. Weekdays from about 12:30, the amphitheater near Castlereagh Street hosts free lunchtime concerts with sounds from all corners of the music world, from police bands to string quartets to rock-and-rollers.
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