Connected along the Freedom Trail, the park sites in downtown Boston are part of a unique collaboration of public and private organizations. The sites listed here comprise the most significant sites in downtown Boston. They were identified in the park's 1974 establishing legislation as possessing the greatest importance in the creation of the United States. Each one is operated as a historic site open daily.
Old South Meeting House, Old State House, and Paul Revere House are each operated by independent non-profit organizations that predate the Park Service itself. Old North remains an active Episcopal church that dates back to 1723. Faneuil Hall remains a City-owned building and it is operated in collaboration with Boston National Historical Park.