St. Michael's Cathedral (Springfield, Massachusetts)

The Quadrangle is the common name for a cluster of museums and cultural institutions in Metro Center, Springfield, Massachusetts, on Chestnut Street between State and Edwards Streets. The Dr. Seuss National Memorial Sculpture Garden, in the center of the Quadrangle, is surrounded by a park, a library, five museums, and a cathedral. A second cathedral is just on the Quadrangle's periphery.

The Church of the Unity was a church building designed by H. H. Richardson and built in Springfield, Massachusetts in 1866. It housed the Third Congregational Society, a Unitarian congregation founded in 1819 (although they were referred to as the Church of the Unity during their residence in the building). It was demolished in 1961.

The Diocese of Springfield in Massachusetts (Latin: Diœcesis Campifontis) is a Latin Church ecclesiastical territory, or diocese, of the Catholic Church in Western Massachusetts in the United States. It is a suffragan diocese in the ecclesiastical province of the metropolitan Archdiocese of Boston. The mother church of the diocese is St. Michael's Cathedral in Springfield. As of 2023, the bishop is William Draper Byrne

The Springfield Science Museum is located in Springfield, Massachusetts, in the United States. Founded in 1859, the museum has operated in its current building since 1899. The building has undergone two expansions, in 1934 and 1970. It is also home to the country's oldest operating projection planetarium, Seymour Planetarium.

The Puritan is a bronze statue by sculptor Augustus St. Gaudens in Springfield, Massachusetts, United States, which became so popular it was reproduced for over 20 other cities, museums, universities, and private collectors around the world, and later became an official symbol of the city, emblazoned on its municipal flag. Originally designed to be part of Stearns Square, since 1899 the statue has stood at the corner of Chestnut and State Street next to The Quadrangle.

Christ Church Cathedral is an Episcopal cathedral located in Springfield, Massachusetts, United States. It is the seat of the Diocese of Western Massachusetts. In 1974 the cathedral was included as a contributing property in the Quadrangle–Mattoon Street Historic District, listed on the National Register of Historic Places.

The Quadrangle–Mattoon Street Historic District is a historic district in Springfield, Massachusetts, bounded by Chestnut Street to the West; State Street to the South; and includes properties on Mattoon, Salem, Edwards and Elliot Streets. Located in the Metro Center, the Quadrangle–Mattoon Street Historic District is one of the few neighborhoods in the Knowledge Corridor lined with historic, restored red-brick Victorian row houses on both sides, covered by tree canopies. The Quadrangle–Mattoon Street Historic District consists of housing stock of various architectural styles, from detached Victorian houses, to attached red-brick row-houses, to H.H. Richardson churches. The area contains Mid 19th Century Revivals and Late 19th And 20th Century Revivals.Since 2006, Metro Center – and in particular, the Quadrangle–Mattoon Street Historic District – has seen a notable resurgence in residential living, with growing populations of people seeking an urban, cultural environment at reasonable prices, e.g. 20-somethings, LGBTs, bohemians, urban professionals, and empty-nesters. The Mattoon Street neighborhood features many of Springfield's most prestigious residential addresses, on Mattoon Street, Salem Street, Elliot Street, etc. It also features one of the famous architect H.H. Richardson's first works in the Richardsonian Romanesque style, the Hispanic Baptist Church. Early each Fall, the neighborhood hosts a large arts festival, "The Mattoon Street Arts Festival." The historic district's namesake Quadrangle features a grouping of five museums around the Dr. Seuss Memorial Sculpture Garden. Recent developments include 2008's $57 million Moshe Safdie-designed, Federal Courthouse on State Street; and the TRO Jung|Brannen designed $101 million adaptive reuse of Springfield's original Technical High School for Massachusetts' Data Center.

The Michele and Donald D'Amour Museum of Fine Arts, also called the D'Amour Museum of Fine Arts, is an art museum on the Quadrangle in Springfield, Massachusetts, which is primarily focused on paintings and works on paper.

The Dr. Seuss National Memorial Sculpture Garden is a sculpture garden at the Quadrangle in Springfield, Massachusetts, which honors Theodor Seuss Geisel, better known as Dr. Seuss, who was born in Springfield in 1904. The monument was designed by Lark Grey Dimond-Cates, the author's stepdaughter, and created by sculptor and artist Ron Henson.

The South Congregational Church is a historic church at 45 Maple Street in Springfield, Massachusetts. The 1875 High Victorian Gothic building was designed by William Appleton Potter for a congregation that was established in 1842, and is still active today. The building is also noted for some prominent donors who funded its construction, notably Daniel B. Wesson (of Smith & Wesson fame), Charles and George Merriam (of Merriam-Webster fame), and Daniel Harris, who owned and capitalized on the Howe truss patent for bridge design.The church is one of Potter's early works, predating the extensive work he did for the United States government. The church was described in contemporary writing as "a rather bold departure" from normal church design of the period. The church is 136 feet (41 m) long and 77 feet (23 m) wide, and is made of limestone (quarried in Longmeadow) resting on a granite foundation (quarried in Monson). The rounded apse faces Maple street, and is topped by a conical roof with red banding in the slate roof. The apse has nine windows with Gothic arches shaped of alternating light and dark stone. To its right is a tower, which rises 120 feet (37 m) above the main entrance to the building. The tower is richly decorated with arched windows and yellow Ohio sandstone banding. There is a second entrance at the northwest end (the far end of the nave) that was originally similar in styling to the front entrance, but was later enlarged and given more ornate detailing.The interior was designed, uniquely for the time, to provide unobstructed views of the pulpit area from pews located in the transepts of the building. This gave the interior a sense of resemblance to an amphitheatre. The interior also contains decorations in themes drawn from nature, notably seasonal decorations in the tower entrance.A parish house was added to the east side of the church in the 1940s. Built of brick, it was faced with limestone that was quarried in Longmeadow at about the same time as that of the church itself. It was recovered from the First Baptist Church prior to its demolition. The church was listed on the National Register of Historic Places in 1976.

The Amazing World of Dr. Seuss Museum is a museum in Springfield, Massachusetts, United States located in the William Pynchon Memorial Building, which until 2009 housed the Connecticut Valley Historical Museum. The museum opened in June 2017. It is located on the Quadrangle along with the Dr. Seuss National Memorial Sculpture Garden and other museums.

North Congregational Church was built in Springfield, Massachusetts in 1872-73, and was one of the early works by noted American architect Henry Hobson Richardson. It is one of his first works in the Romanesque style.