From the Wikipedia page [1]

The State Museum of Pennsylvania is a non-profit museum at 300 North Street in downtown Harrisburg, run by the Commonwealth of Pennsylvania through the Pennsylvania Historical and Museum Commission to preserve and interpret the region's history and culture. It is a part of the Pennsylvania State Capitol Complex. While it is officially named the State Museum of Pennsylvania, members of the public, as well as official publications, sometimes refer to the facility as the William Penn Memorial Museum; the museum's central hall features a large statue of Penn.

On March 28, 1905, Governor Samuel W. Pennypacker signed legislation creating The State Museum of Pennsylvania. On March 1, 1907, the museum staff and collection moved into the Executive Office Building. It became part of the Pennsylvania Historical and Museum Commission in 1945, and moved to its present building in 1964. It is located adjacent to the State Capitol Building. The building is round and the museum exhibits are located on the ground, first, second, and third floors, with offices of the museum staff and Pennsylvania Historical and Museum Commission on the fourth and fifth floors. The building was listed on the National Register of Historic Places in 2014.

The website is [2].