Primrose Hill Historic District

Belfast is a city in Waldo County, Maine, United States. As of the 2020 census, the city population was 6,938. Located at the mouth of the Passagassawakeag River estuary on Belfast Bay and Penobscot Bay. Belfast is the county seat of Waldo County. Its seaport has a wealth of antique architecture in several historic districts, and remains popular with tourists.

The First Church of Belfast is a historic church at 8 Court Street in Belfast, Maine. The church congregation was founded in 1796, and its present building was built in 1818. The well-preserved Federal style church was listed on the National Register of Historic Places in 1976, as one of a few churches in the state based closely on the designs of Asher Benjamin. The congregation is affiliated with the United Church of Christ; its current pastors are Dr. Kate Winters and Rev. Joel Kruger.

The Hayford Block is a historic commercial building at 47 Church Street in downtown Belfast, Maine. Built in 1866 and enlarged in 1869, it was the first significant construction after a major fire devastated central Belfast in 1865. It is also home to Hayford Hall, an opera house that was for many years the city's major performance venue.

The Belfast Historic District encompasses a large portion of the city center of Belfast, Maine, representing one of Maine's largest concentrations of pre-Civil War architecture, as well as a rich collection of commercial architecture of the late 19th and early 20th centuries. The district was listed on the National Register of Historic Places in 1986, with minor enlargements in 1993 and 1995.

The Belfast National Bank is a historic commercial building at Main and Beaver Streets in downtown Belfast, Maine. Built in 1879 and enlarged twelve years later, it is one of the city's most elaborately decorated buildings. It was designed by George M. Harding, and was listed on the National Register of Historic Places in 1973.

The Belfast Commercial Historic District encompasses two blocks of the central business district of Belfast, Maine. This area includes the best-preserved and most architecturally interesting commercial buildings of the city's mid-to-late 19th century development, when it was the leading port on Penobscot Bay. It extends along Main Street from the major intersection and Church Street north to Washington Street. It was listed on the National Register of Historic Places in 1980, and is entirely contained within the larger Belfast Historic District.

The former Masonic Temple is a historic commercial and social building at Main and High Streets in downtown Belfast, Maine. Built in 1877, it is one of the city's most elaborately decorated buildings, featuring Masonic symbols. It was listed on the National Register of Historic Places in 1973. While there are active Masonic organizations in Belfast, they now meet in a modern facility on Wight Street.

The Belfast Free Library is a public library in Belfast, Maine. The library was established in 1887 by act of the Maine Legislature following donations from Paul Hazeltine and Nathanial Wilson.

The Church Street Historic District is a predominantly residential historic district in Belfast, Maine. The 30-acre (12 ha) district extends along Church Street roughly between Franklin and High Streets, and encompasses a neighborhood of homes dating from the early 19th to the early 20th century, the major period of the city's growth. The district was listed on the National Register of Historic Places in 1978, and is contained within the larger Belfast Historic District.

Front Street Shipyard is a custom boat builder, boat yard, marina, and service yard in Belfast, Maine, USA. The yard is located along the waterfront in Penobscot Bay. The business was established in 2011. One year later, the ownership group also purchased the neighboring business, Belfast Boat Yard. In 2014, Front Street Shipyard began leasing a building in Bucksport, Maine, where production boats are built. Front Street Shipyard is situated on a six-acre property with 1,500 feet of waterfront. The yard has 72,555 square feet of space for yacht storage and 10,320 square feet of shop space for boat building and yacht refits. The buildings on site are long enough and tall enough to accommodate yachts up to 155 feet long. There are seven acres of off-site storage space, as well as a production boat building facility in the neighboring town of Bucksport. The yard has a yacht lifting capacity of 485 tons, making it capable of lifting superyachts.Front Street Shipyard specializes in boat building and yacht refits. Notable superyacht refits at Front Street Shipyard include: ASHA, a 90-foot Palmer Johnson motoryacht, in 2015. ASOLARE, a 154-foot cold-molded wooden ketch, in 2014. MARAE, a 108-foot pilothouse sloop, in 2014. ATLANTIDE, a 122-foot historic steel motoryacht, in 2012-13. STONEFACE, a 106-foot aluminum Burger motoryacht, in 2011-12.Front Street Shipyard works with yacht designers to develop concept yacht designs for new construction. The designs available for construction at Front Street Shipyard include: 84-foot and 102-foot modern sloops designed by Bill Tripp. 118-foot and 130-foot sloops designed by Sparkman & Stephens.

The schooner Timberwind is a historic former pilot boat, now berthed in Portland, Maine. Built in 1931, she served as a pilot boat (named Portland Pilot) in Portland Harbor until 1969, and was then converted into a schooner as part of the Maine "windjammer" tourist fleet. She is one of a very small number of early 20th-century purpose-built pilot boats that has survived major alteration, and was listed on the National Register of Historic Places in 1992. She moved to Rockport in 1969 and then to Belfast in 2015. She was purchased by the Portland Schooner Company in 2018.

The Passagassawakeag River () is a 16-mile-long (26 km) river in Waldo County, Maine in the United States. From the outlet of Lake Passagassawakeag (44°30′04″N 69°07′59″W) in Brooks, it runs south and east to its estuary in Belfast, Maine. The river empties into Belfast Bay, an inlet of Penobscot Bay, where it passes under US Route 1. The waterway's name is of local Native American origin and is believed to mean "a sturgeon's place" or "a place for spearing sturgeon by torchlight."