DO YOU KNOW.HOW one Boston building provides a daily weatherforecast?(Hint: If you know the poem you can crack the code!)WHAT popular spot in the city was once used for suchthings as livestock grazing
DO YOU KNOW.WHAT big celebration drew nine million people toPhiladelphia--in 1875?(Hint: It was another "Philly first.")WHICH invention dedicated in 1946 at the Universityof Pennsylvania greatly contr
