The Bangor Museum and Center for History presents the history of events which occurred within the boundaries of the modern state of Maine. Collections include more than 10,000 photographic artifacts; 800 examples of historical costume; and a strong collection of Civil war artifacts, which includes Union officer Joshua Chamberlain's sword, letters written by Hannibal Hamlin, and an apothecary chest. The museum also operates the Thomas A. Hill House and Civil War Museum. Display highlights include furniture and artifacts which belonged to Hannibal Hamlin (1809-1891), Vice President under Abraham Lincoln. The Greek Revival residence dates to 1835.

The museum offers ghost walking tours and Mount Hope Cemetery tours. The Thomas A. Hill House offers exhibits and guided tours led by costumed interpreters. The website offers a virtual tour of Bangor's historic architectural sites.

The main building is currently closed for renovations. The Thomas A. Hill House and Civil War Museum is still open to the public.