Main Street Historic District (Rockland, Maine)

The Security Trust Building is a historic commercial building at Museum and Main Streets in downtown Rockland, Maine, United States. Built in 1912, it is a high-quality local example of Colonial Revival architecture, designed by Boston architect R. Clipston Sturgis. It was listed on the National Register of Historic Places in 1978.

The Farnsworth Art Museum in Rockland, Maine, United States, is an art museum that specializes in American art. Its permanent collection includes works by such artists as Gilbert Stuart, Thomas Sully, Thomas Eakins, Eastman Johnson, Fitz Henry Lane, Frank Benson, Childe Hassam, and Maurice Prendergast, as well as a significant collection of works by the 20th-century sculptor Louise Nevelson. Four galleries are devoted to contemporary art. The museum's mission is to celebrate Maine's role in American art. It has one of the nation's largest collections of the paintings of the Wyeth family: N.C. Wyeth, Andrew Wyeth, and Jamie Wyeth. The museum owns and operates the Olson House in Cushing, inspiration for Andrew Wyeth's Christina's World painting. The museum also owns the Farnsworth Homestead, the Rockland home of its founder Lucy Farnsworth. The museum's building was built in 1948 to designs by Wadsworth, Boston & Tuttle of Portland.

The Strand Theatre is a historic performing arts venue at 345 Main Street in downtown Rockland, Maine. Built in 1923 in the wake of a fire that destroyed part of the downtown, it is a rare example of Egyptian Revival architecture, and the only one of three theaters built in Rockland in that period to survive. Now owned by a non-profit, it continues to present films as well as musical and theatrical productions. It was listed on the National Register of Historic Places in 2004.

The Farnsworth Homestead is a historic house museum at 21 Elm Street in Rockland, Maine. Built in 1854 by William A. Farnsworth, it is an excellent late example of Greek Revival architecture, and was the home of Lucy Farnsworth, the major benefactor of the Farnsworth Art Museum, which owns the house and operates it as a museum property. The house was listed on the National Register of Historic Places in 1973.

The American Lighthouse Foundation (ALF) is a 501(c)(3) non-profit organization founded in 1994 with a primary mission of lighthouse preservation. ALF's main office and storefront are headquartered in Rockland, Maine, and the organization currently has thirteen chapters that have stewardship responsibility over the following twenty-two lighthouses in Connecticut, Maine, Massachusetts, New Hampshire, and Rhode Island:

The Rockland Public Library is located at 80 Union Street in central Rockland, Maine. It is located in an architecturally distinguished building, built in 1903–04 with funding support from Andrew Carnegie. The library was listed on the National Register of Historic Places in 1979 for its architecture. The library is one of the only libraries in Maine designated as a "Star Library" by Library Journal.

The Knox County Courthouse is located at 62 Union Street in downtown Rockland, the county seat of Knox County, Maine. The oldest portion of the courthouse was designed by Gridley James Fox Bryant and was built in 1874. A prominent local example of Italianate architecture, it has been the county's seat of operations since its construction. It was listed on the National Register of Historic Places in 1977.

Stephen Taber is a two-masted schooner, built in 1871, operating as a "windjammer" in the tourist trade out of Rockland, Maine. A National Historic Landmark, she is one of a small number of surviving schooners originally built for the Atlantic coasting trade, and one of only three with a centerboard, allowing access through shallow channels and to shallow landing points. She is named for New York lawyer and politician Stephen Taber, and has a well-documented history of continuous service since her construction.

Rockland station is a railway station located at Union and Pleasant Streets in Rockland, Maine. It is the eastern terminus of the Rockland Branch, a state-owned track connecting Rockland and Brunswick. The historic station building was built in 1917 by the Maine Central Railroad, and was listed on the National Register of Historic Places in 1978 as Rockland Railroad Station. It presently houses a restaurant, and served for a time as Rockland's city hall. The line is presently inactive, having most recently had seasonal passenger service from 2004 to 2015 operated by the now-defunct Maine Eastern Railroad. The line would then be leased to the Central Maine and Quebec Railway (CMQ) from 2015 to 2020, then to Canadian Pacific Railway following its purchase of CMQ in 2020. CMQ originally planned to reintroduce service on the line, but not with excursions.

Rockland Ferry Terminal is a public ferry terminal and intercity bus stop in Rockland, Maine. It is the mainland terminus for ferries to three island communities in Penobscot Bay: Vinalhaven, North Haven and Matinicus. Concord Coach Lines provides bus service to Portland, Bangor, Boston, and nearby towns. State law requires the Maine Department of Transportation to operate the ferry routes as part of the Maine State Ferry Service. Ferries to Vinalhaven and North Haven depart several times per day, year-round. Matinicus sees 12 to 36 departures spread throughout the year. These islands are popular summer colonies that often see their populations quadruple during the tourist season. All ferries allow passengers, bicycles, motor vehicles, and freight. Reservations are recommended for cars and trucks.

The schooner J. & E. Riggin, a National Historic Landmark, was built on the Maurice River in Dorchester, New Jersey in 1927. She is one of a small number of surviving two-masted schooners, once one of the most common sailing ships in North American waters. Now based in Rockland, Maine, she serves as a "windjammer" offering sailing cruises to tourists.

Isaac H. Evans, originally Boyd N. Sheppard, is a two-masted schooner berthed in Rockland, Maine. She is a Maine windjammer, serving the tourist trade. Built in 1886 in Mauricetown, New Jersey, she is the oldest of a small number of surviving oyster schooners, used in service of the oyster harvesting industry in the coastal waters of New Jersey. She was declared a National Historic Landmark in 1992.