City Hall is the office building where Philadelphia's mayor works.It was built from 1871-1901 and was the world's tallest building from 1901-1908.It has 9 stories and is 548ft.(167m.) tall.
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City Hall is the office building where Philadelphia's mayor works.It was built from 1871-1901 and was the world's tallest building from 1901-1908.It has 9 stories and is 548ft.(167m.) tall.