From Wikipedia:

en.wikipedia.org/wiki/Copley_Square

Copley Square, named for painter John Singleton Copley, is a public square in Boston's Back Bay neighborhood, bounded by Boylston Street, Clarendon Street, St. James Avenue, and Dartmouth Street. Prior to 1883 it was known as Art Square due to its many cultural institutions, some of which remain today. It was proposed as a Boston Landmark.

Within the Square are several architectural landmarks:

Old South Church (1873), by Charles Amos Cummings and Willard T. Sears in the Venetian Gothic Revival style

Trinity Church (1877, Romanesque Revival), considered H. H. Richardson's tour de force

Boston Public Library (1895), by Charles Follen McKim in a revival of Italian Renaissance style, incorporates artworks by John Singer Sargent, Edwin Austin Abbey, Daniel Chester French, and others

The Fairmont Copley Plaza Hotel (1912) by Henry Janeway Hardenbergh in the Beaux-Arts style (on the site of the original Museum of Fine Arts, Boston)

The John Hancock Tower (1976, late Modernist) by Henry N. Cobb, at 790 feet (240 m) (241 m) New England's tallest building

The Bostix Kiosk (1992, Postmodernist), at the corner of Dartmouth and Boylston streets, by Graham Gund with inspiration from Parisian park pavilions

A significant number of important Boston educational and cultural institutions were originally located adjacent to (or very near) Copley Square, reflecting 19th-century Boston's aspirations for the location as a center of culture and progress. These included the Museum of Fine Arts, the Massachusetts Institute of Technology, Harvard Medical School, the New England Museum of Natural History (today's Museum of Science), Trinity Church, the New Old South Church, the Boston Public Library, the American Academy of Arts and Sciences, the Massachusetts Normal Art School (today's Massachusetts College of Art and Design), the Horace Mann School for the Deaf, Boston University, Emerson College, and Northeastern University.

Known as Art Square until 1883, Copley Square was originally cut diagonally by Huntington Avenue; it took its present form in 1961 when Huntington Avenue was truncated at the corner of Dartmouth Street, the Square partially paved, and a pyramidal fountain sculpture added. In 1991, after further changes including a new fountain, the new Copley Square Park[further explanation needed] was dedicated. The nonprofit Friends of Copley Square raises funds for care of the square's plantings, fountain, and monuments.

The Boston Marathon foot race has finished at Copley Square since 1986. A memorial celebrating the race's 100th running (in 1996) is located in the park, near the corner of Boylston and Dartmouth streets.