Philadelphia
Here, as the priceless Declaration and Constitution documents were signed, a nation was born. Tributes to America's foundation remain, from the Liberty Bell to Independence Hall, amid a cityscape of row houses and economic centres. But Philadelphia's little treasures keep you coming back. Philly cheesesteaks, hoagies, and scrapple might leave you bursting with delicious goodness, so follow through with a triumphant trip up the famous steps, like Rocky Balboa himself.