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Greenwich YMCA is a historic building at 50 East Putnam Avenue in Greenwich, Connecticut. Built in 1916 as a gift from Mrs. Nathaniel Witherill, it is a distinctive example of Colonial Revival / Georgian Revival style with Beaux Arts flourishes. The building was listed on the U.S. National Register of Historic Places in 1996.

St. Mary is a Roman Catholic church in Greenwich, Connecticut, United States, part of the Diocese of Bridgeport.

The Methodist Episcopal Church is a historic church and parsonage at 61 East Putnam Avenue (United States Route 1) in Greenwich, Connecticut. Built in 1868-69 for a Methodist congregation established in 1805, the church is a fine local example of Carpenter Gothic architecture, and the parsonage, built in 1872, is a good example of Italianate architecture. The property was listed on the National Register of Historic Places in 1988. The congregation is affiliated with the United Methodist Church.

The Greenwich Avenue Historic District is a historic district representing the commercial and civic historical development of the downtown area of the town of Greenwich, Connecticut. The district was listed on the National Register of Historic Places on August 31, 1989. Included in the district is the Greenwich Municipal Center Historic District, which was listed on the National Register the year before for the classical revival style municipal buildings in the core of Downtown. Most of the commercial buildings in the district fall into three broad styles, reflecting the period in which they were built: Italianate (late 19th century), Georgian Revival (early 20th century), and Commercial style (after World War I). The district is linear and runs north–south along the entire length of Greenwich Avenue, the main thoroughfare of Downtown Greenwich, between U.S. Route 1 and the New Haven Line railroad tracks.

The Greenwich Senior Center, formerly Greenwich Town Hall, is a historic municipal building at 299 Greenwich Avenue in the business district of Greenwich, Connecticut. USA. Built in 1905, it is a prominent local example of Beaux Arts architecture, and served as the town's center of government until 1977. The building was added to the National Register of Historic Places on May 21, 1987.

Greenwich Library is the main library in the Greenwich library system of Greenwich, Connecticut, United States. The Greenwich Library system consists of the Main Library and its Byram Shubert and Cos Cob branches.

The United States Post Office is a former post office building at 310 Greenwich Avenue in downtown Greenwich, Connecticut. Built in 1915, it is a good example of Classical Revival architecture, with a distinctive plan predating the Postal Service's standardization of buildings. It was listed on the National Register of Historic Places in 1986. It was included in the Greenwich Municipal Center Historic District which was listed in 1988, and is also included in the Greenwich Avenue Historic District. The building is now in commercial retail use.

The Fourth Ward Historic District encompasses an early urban residential subdivision of Greenwich, Connecticut. Extending north from United States Route 1 along Sherwood Place, Church Street, and adjacent streets, it is one of two subdivisions created before the arrival of the railroad in Greenwich in 1848. It is characterized by dense residential construction, with architectural styles from the Greek Revival to early 20th-century styles. The district was listed on the National Register of Historic Places in 2000.

The Little Bethel African Methodist Episcopal Church, now the Bethel African Methodist Episcopal Church, is a historic church building and congregation at 44 Lake Avenue in Greenwich, Connecticut, United States. Founded in 1882, the congregation was Greenwich's first African-American congregation of any denomination, and remains a center of African-American society in the town. Its current church, built in 1921 on the site of its first church, is a good example of Late Gothic Revival architecture, and was listed on the National Register of Historic Places in 2010.

Greenwich station is a commuter rail stop on the Metro-North Railroad's New Haven Line in Greenwich, Connecticut. It is also the first/last stop for some express trains that originate/terminate at South Norwalk, Bridgeport, New Haven–Union Station or New Haven–State Street.

The Putnam Hill Historic District encompasses a former town center of Greenwich, Connecticut. Located on United States Route 1 between Milbank Avenue and Old Church Road, the district includes the churches of two historic congregations, a former tavern, and a collection of fine mid-Victorian residential architecture. The district was listed on the National Register of Historic Places in 1979.

Brunswick School is a private, college-preparatory school for boys in Greenwich, Connecticut, United States. It was founded in 1902 by George B. Carmichael.