The Brooklyn Children's Museum was first opened in 1899 located in two Victorian mansions on Brooklyn Avenue. Founded through the Brooklyn Institute of Arts and Sciences, it was the first museum for children in the country and grew immensely popular. Eventually in 1975, the two mansions that housed the museum were demolished and its current building designed by architectural firm of Hardy Holzman & Pfeiffer Associates was constructed. Moreover, its 2008 renovation prompted another first: the first NYC LEED-certified Green museum. It continues to be one of the nation's premiere children's museum, boasting a permanent collection of more than 30,000 items.

The Soviet Private School was for children of Soviet citizens sent to the United States. According to the Brooklyn Daily Eagle the building "no longer exists, but no further information is available."

Brooklyn Training School for Teachers, ca. 1930. Rendered in a Collegiate Renaissance Revival style, the Brooklyn Training School for Teachers was both a training school for aspiring teachers and the school in which their training was put into practice. This progressive model offered free education with theoretical and real classroom experience to a generation of adults, the children of immigrants, looking to make their way in the city. The building was completed between 1902 and 1907 as the population of New York, and as such, the number of students in its public schools, was booming. The training school model was discontinued in the early 1930s as the success of the program and the Depression resulted in an excess of qualified but out-of-work teachers. The building became a regular public grammar school called P.S. 138.

The Kings County Savings Bank, date unknown. Designed by Halsey, McCormack & Helmer, the architectural firm that was responsible for the Williamsburg Savings Bank tower at Hanson Place, this Art Deco building was completed in 1930. The facade features sculptural figures of lions, a dog and a number of human representations of scientists, scholars, and inventors. Once the home of the Kings County Savings Bank, it now houses the Banco Popular.

(Henry M. Congdon & Son, 1907; additions: 1937) This Romanesque Revival style building was designed as the community center for a large church planned for the lot next door that was never built. The building included a basement gym, kitchen, auditorium and classrooms. Interestingly, the firm had recently designed the homes on the opposite side of Union Street (site 13), thus allowing for a certain continuity and design harmony on the block. Thirty years after designing the original structure, the architectural firm of Henry M. Congdon & Son returned in 1937 to permanently transform the building into a church, adding Gothic details with a new sanctuary, steeple, entrance and stairway. The corner structure benefits from being set back by grassy lawns from both Union Street and Brooklyn Avenue, lending it a pleasant stature in addition to its architectural charm.

Brooklyn Children's Museum 145 Brooklyn Avenue Designed by Hardy Holzman Pfeiffer Associates 1977; expansion: Rafael Viñoly, 2008 Despite the Brooklyn Children’s Museum’s contemporary design, the institution itself is believed to be the oldest children’s museum in the country. It has been located on this site since 1899, when a mansion on this property – the William Newton Adams House – was converted into a children’s museum. It proved to be a huge hit, so at some point over the next two decades, the museum expanded into the L.C. Smith House next door. By 1967, the museum had outgrown both mansions and began planning for a new building on the site, which was completed in 1977. The current iteration of the Brooklyn Children’s Museum was mostly constructed in 2008, but its design is in fact an expansion of the 1977 structure, which was largely subterranean. The expansion, whose wavy design and primary color palette are in stark contrast to the character of the surrounding neighborhood, is clad in 8.1 million yellow ceramic tiles. The expansion roughly doubled the building’s size to 102,000 square feet.

1345 President Street. S. Epstein residence, ca. 1923.

Brooklyn Jewish Center, 1924. This synagogue and community center had its cornerstone laid in 1920 and was established to cater to the needs of Jewish life. The building when completed had a sanctuary, wedding ballroom, a day school, a swimming pool, and a health club. A kosher restaurant and a robust adult education program rounded out the center which was imagined as a single institution for educational, religious, social, and recreational activities. It has earned the descriptor of "a pool with a school and a shul." In the 1960s a the surrounding neighborhood was changing (white Jewish and Catholic populations were moving away, while African American and Chassidic Jewish communities were arriving) the building adapted to the transition. It became the home of the Educational Institute Oholei Torah, the flagship school of the Chabad-Lubavitch movement.

St. Gregory's R.C. Church and Convent, 1931. St. Gregory's church is an example of a basilican church inspired by early Christian architecture, and specifically modeled on two 5th century Roman churches. The church features a front portico (not visible in this photograph) and a seven story campanile (bell tower). Completed in 1916, the terra cotta-trimmed building was designed by Frank Helmle. Helmle, a prolific Brooklyn architect who mostly worked in Renaissance inspired styles in the early 20th century, designed banks, churches, and a number of landmark civic structures (such as the Boat House in Prospect Park) as the Superintendent of Public Buildings of Brooklyn. The structure seen in the foreground is the church's rectory (no. 224). Also designed by Helmle, with his then partner Harvey Corbett, in 1922, the building is a modest three-story neo-Classical structure.

Located along the hilly terminal moraine between the prosperous communities of Bedford and Flatbush, Crown Heights South was considered a rocky no-man’s land of scrub farmland for most of the 19th century. During that time, it was home to subsistence farmers whose homes dotted the landscape, as well as poor Irish and black families who settled in shantytowns called “Crow Hill” and “Pigtown” by a derisive press. In 1846, this was where the city of Brooklyn placed the Kings County Penitentiary, as far from downtown Brooklyn as was feasible. By 1874, Frederick Law Olmsted and Calvert Vaux had completed Eastern Parkway as a Parisian-style boulevard to extend the picturesque character of Prospect Park into the expanding residential neighborhoods of Brooklyn. The parkway, which followed the moraine through the neighborhood that was now called Crown Heights, was designed to be lined with fine homes and mansions, though this housing never developed as Olmsted and Vaux envisioned. The thoroughfare did bring attention to the neighborhood, though, and formed the border between Crown Heights North and Crown Heights South in later years. While the northern side of Crown Heights was fully built up by 1900, it wasn’t until after the new century began that large-scale residential development began in southern Crown Heights. The north-south corridors of Nostrand, Bedford, Rogers and Franklin Avenues were already important transportation corridors, leading to the paving of Union, President, Carroll and other cross streets. Several major changes led to the development of Crown Heights South after the turn of the 20th century. These included the 1907 demolition of the infamous Kings County Penitentiary, which was replaced by a Jesuit Prep school and college; the 1913 construction of Ebbets Field, home to the Brooklyn Dodgers baseball team; the development of Brooklyn’s famous Automobile Row, with its showrooms and service centers, which flourished on Bedford Avenue between 1905 and 1945; and the presence of the nearby Brooklyn Museum, which opened in 1897. Encouraged by these developments, as well as the new subways constructed under Eastern Parkway, developers built up entire blocks at a time with new housing. With the exception of certain blocks of single-family mansions, much of what was built was designed for multiple families, as the age of the single-family rowhouse had nearly passed. Crown Heights South displays a fine array of architectural styles of the early 20th century, designed by such prominent Brooklyn architects as Montrose W. Morris, Axel Hedman, J. L. Brush, Arthur Koch and Slee & Bryson in the Revival styles popular at the time: Renaissance, Colonial, Flemish, Tudor and more. Today, the neighborhood retains its vibrant mix of residential architecture, including attached rowhouses, detached mansions and grand apartment buildings, as well as some fine religious buildings and grand institutions. One of its most well-known structures is the Bedford Armory, the city’s first mounted cavalry-unit armory that occupies an entire city block. The armory’s future is a source of controversy, with developers seeking to construct housing on the site and community members vying to preserve the building. Unfortunately, none of Crown Heights South’s architectural gems have been designated as landmarks by the New York City Landmarks Preservation Commission. Local advocates, including the Crown Heights South Association, formed in 2016, are working to survey and advocate for the neighborhood to ensure that any future changes are sensitive to its rich past.

1275 President Street, July 15, 1962. President Street between New York and Kingston Avenues is known as Doctor's Row (and also Millionaire's Row). The block of classic mansions, built in the early part of the century, were occupied by the 1930s largely by doctors. Most of these men worked in one of three nearby Brooklyn hospitals (House of St. Giles the Cripple, Kings County Hospital, or Brooklyn Jewish Hospital). No. 1275 was built in a pair with no. 1277, and when first advertised in 1913 each boasted seven rooms, steam heat, and gas and electric lighting. By the mid 1920s the house was home to a Mrs. Ross whose daughter married a surgeon at the Jewish Hospital. That family lived in the home through at least the 1950s. The architects of Doctor's Row mansions included William Van Alen (who went on to design the Chrysler Building), Cohn Brothers, William Debus, and Henry M. Congdon, though it is not known exactly which architect created this attached pair.

Ludwig Nissen Mansion, 1932. Ludwig Nissen was a German immigrant and son of aristocratic German family, who arrived in New York alone and poor in 1872. He went on to find much success as a leading diamond dealer. He also was a Mason, president of a number of Brooklyn social clubs and professional associations, and served as a Civil Service Commissioner of Brooklyn. In 1904 he bought a plot of land on St. Marks Avenue which included a mansion, built in the 1870s, for sugar refining executive John G. Searles. Nissen had the original mansion razed and erected his own huge house, modeled after a palace in Potsdam, Germany. The house went through a number of owners after Nissen, including the Russian (Soviet) consulate and Abraham Shapiro, a local developer of mansion-replacing apartment houses. In the early 1970s the mansion was one of the last homes still standing on what was known as "Millionaire Row." in 1976 it was demolished for the construction of the Marcus Garvey Senior Residence.

Cameo Theatre, 1924. In 1924 Harrison Wiseman designed a grand Egyptian influenced Art Deco in Crown Heights. A well-known and sought after theatre architect Wiseman created a fanciful facade rendered in colorful terra cotta. A unique feature of this theatre's design was a 1500 seat roof garden auditorium (the concrete screening wall is still visible on the roof). The theatre, which became a Loew's house the year after it opened (and was renamed the Kameo), survived until 1974. That year the Philadelphian Sabbath Church bought the building. Used for church functions since then, the interior of the theatre has been well maintained, and the exterior ornamentation remains if a little dirty.

The Evangelical Lutheran Church of the Epiphany (now Lutheran Church of the Epiphany) was founded in 1908. The building has an exterior of stone and was designed in the Gothic style. The present structure was built in 1925. It includes a gymnasium, kitchen, 800-seat auditorium, Sunday school, parsonage and sexton's quarters.

802 Park Place, 1925. According to the photographer's notes this small wood-frame structure is the gardener's cottage for the home of George B. Fisk. Fisk was president of the Long Island Rail Road from 1839 to 1847. He presumably had a large home, which by 1925 was no longer standing, somewhere in the vicinity of this cottage.

(Church: Frank J. Helmle, 1915-16; School: Helmle & Corbett, 1921; Rectory: Helmle & Corbett, 1922) This magnificent church has a strong presence in the neighborhood due to its richly decorated, seven-story campanile. Frank J. Helmle, was a prominent Brooklyn architect who also designed the Prospect Park Boathouse (1905), the Shelter Pavilion in Monsignor McGolrick Park (1910), and the Brooklyn Central Office, Bureau of Fire Communications (1913). Harvey Wiley Corbett, with whom Helmle collaborated on the church’s school and rectory, is well-known for his work in developing designs for setback, streamlined skyscrapers. The design of St. Gregory is inspired by Rome’s oldest basilicas, the fifth-century San Clemente and Santa Maria in Trastevere. While its bell tower dominates the rear of the church, the front is graced with a portico entrance of Ionic columns topped by a setback story that features a wheel window and shell niches housing sculpted figures. The school and rectory are far simpler, designed in the neo-Classical style to complement the church

1237-1297 Carroll Street Designed by John Wandell 1913 The mixture of Renaissance Revival and Colonial Revival style details in these alternating bow- and flat-front houses is unique to Crown Heights South. To visually link these different stylistic elements, which were not typically found side-by-side or on the same structure, architect John Wandell designed some of them to have a common cornice line and a molded belt course over the first floor. Unlike earlier rowhouses, many of the houses have English style stoops, which rise to only a few steps above street level, rather than the classic high stoops of the late 19th century.