One Free night stay for 2 people (includes room & tax). Enjoy a warm welcome and step back in time to colonial Philadelphia at the Sheraton Society Hill Hotel, 1 Dock Street. Create memories with loved ones as you stroll along cobblestone streets and visit America's most historic square mile, which includes such sites as Independence Hall and the Liberty Bell, just four blocks away.  Offer expires 4/26/08 (includes room & tax).