The Penobscot Marine Museum presents the 19th-century history of Penobscot Bay's maritime industry and recreation, as well as the history of maritime professionals from the area who sailed elsewhere. Areas of focus include square-riggers and trade with China. Collection highlights include 19th-century work and recreation vessels; marine artworks by Thomas Buttersworth, James Buttersworth, Robert Salmon, and Antonio Jacobsen; and more than 30,000 glass plate photographs. The museum consists of 12 historic structures, forming a "village" with buildings dating from between 1810 and 1845. One of these is furnished as a Victorian era sea captain's home. The museum owns the 1949 sardine carrier Jacob Pike.
The museum offers a children's room, interactive and traditional exhibits, period rooms, tours, outreach presentations, summer day camps, 10 educational programs, and library access. The library is open by appointment only, and research assistance requires payment. The museum is partially handicapped accessible. The museum also offers an education resource site at http://www.penobscotbayhistory.org. This site includes a teacher's guide, available for download.