Mayor Michael Bloomberg presented the New York Giants with keys to the city on Tuesday.
Many fans, a number of whom had arrived at the ceremony after seeing the parade to honor the team, watched the presentation on large monitors that had been set up on the streets surrounding City Hall.
Former Giants defensive end Michael Strahan began the presentation, his "Go New York City!" cheer echoing through the streets.
The parade drew diehard fans and throngs of office dwellers to the windows of their buildings. Dozens chucked mountains of shredded paper onto Broadway.
Later on Tuesday about 30,000 fans flocked to MetLife Stadium in East Rutherford, N.J., to greet the team.