Rio Androscoggin

The Roak Block is an historic commercial-industrial building at 144-170 Main Street in Auburn, Maine. Built in 1871-72 as a combined commercial and industrial space, this Second Empire style block was at that time the largest commercial building in the entire state. It was listed on the National Register of Historic Places in 1982.

The Grand Trunk station is a historic railroad station at 103 Lincoln Street in Lewiston, Maine. It was built in 1874 for a spur line connecting Lewiston and Auburn to the Grand Trunk Railway, to which it was leased. It is through this station that many of the area's French Canadian immigrants arrived to work in the area mills.

The A. A. Garcelon House is a historic house in the Main Street Historic District in Auburn, Maine. Built in 1890 for a prominent local businessman, it is one of the city's finest examples of Queen Anne Victorian architecture. It was listed on the National Register of Historic Places on June 13, 1986.

The Auburn Commercial Historic District encompasses the main late 19th-century historic downtown area of Auburn, Maine. The twelve buildings in the district represent the city's growth between 1855 and 1902, housing businesses, professional offices and social halls, and also the city's municipal offices.

The Edward Little House is an historic house at 217 Main Street in Auburn, Maine. Built in 1827, the Federal style house is one of the oldest on the south side of Auburn, and is most notable as the home of Edward Little, a major landowner and proponent of the development of Auburn. It was added to the National Register of Historic Places in 1976.