As we all learn in school, Plymouth was the site of the colony founded in 1620 by the Pilgrims. Today, it is home to almost 60,000 residents and is one of the county seats of Plymouth County. Plymouth makes up the entire western shore of Cape Cod Bay and has the largest land area of any municipality in the state. There are 21 locations in Plymouth that appear on the National Register of Historic Places, including Plymouth Rock and Cole’s Hill. Plymouth is also home to Pilgrim Hall Museum, which is the oldest continually operating museum in the United States.