The grassy precinct overlooking the harbour has several heritage bluestone buildings. The History House , located in the former town hall (1863), has an interesting museum detailing Portland's colonial past. Customs House (1850) has a fascinating display of confiscated booty, including a stuffed black bear. Also here is the 1845 courthouse , the 1886 Rocket Shed , with a display of ship rescue equipment, and the 1889 battery , built as defence against feared Russian invasion.