Old State House

The Old State House is a historic building in Boston, Massachusetts, at the intersection of Washington and State Streets. Built in 1713, it was the seat of the Massachusetts General Court until 1798, and is one of the oldest public buildings in the United States. One of the landmarks on Boston's Freedom Trail, it is the oldest surviving public building in Boston, and now serves as a history museum operated by the Bostonian Society. It was designated a National Historic Landmark in 1960 and a Boston Landmark by the Boston Landmarks Commission in 1994.

Today's brick Old State House was built in 1712–13, and possibly designed by Robert Twelves. Some historians credit Thomas Dawes with being the architect, but he was of a later generation, so evidently his contributions came later. This was probably in about 1772, after a four-year period of the General Assembly having to meet in Cambridge due to British use of the building as a military barrack . The previous building, the wooden Town House of 1657, had burned in the fire of 1711. A notable feature was the pair of seven-foot tall wooden figures depicting a lion and unicorn, symbols of the British monarchy.