Carpenters' Hall in Philadelphia, Pennsylvania, was a key meeting place in the early history of the United States. Completed in 1775, the meeting hall was built for and is still owned by the Carpenters' Company of the City and County of Philadelphia, the country's oldest extant craft guild (as of 2019). The First Continental Congress met here. The building is now part of Independence National Historical Park. Photo by Carol Highsmith, 2013.