"No visit to Philadelphia is complete without a stop" in Old City to see "the birthplace of the Constitution and home of the Liberty Bell", where "history books come alive" and the sights and sounds are "amazing", "important" – and free; America's Founding Fathers didn't have to put up with "post-9/11 construction barriers", "horrendous" "summer lines" or timed tickets, but 21st-century citizens can "relish" a "beautifully done visitor's center", "informative guides" and "costumed characters", so "eat your heart out, Boston."