Washington Square Park is a New York City landmark in the Manhattan neighborhood of Greenwich Village, as well as a meeting place and center for cultural activity. It is operated by the New York City Department of Parks and Recreation. The Park is an open space, dominated by Washington Arch which was built in 1892.
In "A Picture's Worth a Thousand Bucks", Art Garfunkel is seen playing his guitar and singing at Washington Square Park as Peter and Meg Griffin attempt to profit from her bird-calling ability. Her calls only succeed in annoying the local pigeons, who decide to leave to poop on the Statue of Liberty
Peter wins a chess championship by beating multiple players simultaneously at Washington Square Park in "The Most Interesting Man in the World".