At Washington Crossing Historic Park, George Washington led his ragged troops across the ice-choked Delaware and assaulted the unsuspecting Hessians at Trenton. His victory bolstered sagging morale, changing the course of the American Revolution. The 500-acre site and recreational area includes 13 historic buildings, the noted 100-acre Bowman's Hill Wildflower Preserve and observation tower, and many picnic areas.