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The Oak Park Arms is an independent living and assisted living retirement community located at 408 S. Oak Park Avenue, Oak Park, Illinois. The Oak Park Township Senior Services and The Lifelong Learning Center of Oak Park - River Forest are both located inside the Oak Park Arms. More than ten other providers of senior-centered care maintain offices at the Oak Park Arms. Kindness Creators, an intergenerational daycare located inside of Oak Park Arms, opened on August 29, 2019.

Fenwick High School is a selective private Catholic college preparatory school located in Oak Park, a town in Cook County, Illinois that is bordered by Chicago on the north, east, River Forest and Forest Park on the West, and Cicero and Berwyn on the south. Fenwick was founded in 1929 as part of the Province of St. Albert the Great (Dominican Friars). It is the only school directly operated and staffed by the Catholic Order of Dominican friars in the United States. It is named in honor of Cincinnati Bishop Edward D. Fenwick.

The George W. Smith House is a home in the Chicago suburb of Oak Park, Illinois, United States designed by American architect Frank Lloyd Wright in 1895. It was constructed in 1898 and occupied by a Marshall Field & Company salesman. The design elements were employed a decade later when Wright designed the Unity Temple in Oak Park. The house is listed as a contributing property to the Ridgeland-Oak Park Historic District which joined the National Register of Historic Places in December 1983.

Oak Park is a station on the Chicago Transit Authority's 'L' system situated between the Ridgeland and Harlem stations on the Green Line. It is located at Oak Park Avenue and South Boulevard in the village of Oak Park, Illinois and is the closest station to the Frank Lloyd Wright Home and Studio.

The Ridgeland–Oak Park Historic District is a historic district in Oak Park, Illinois that was listed on the National Register of Historic Places in 1983. It includes 1558 contributing buildings over 539 acres (218 ha).The district includes the George W. Smith House, an early example of Frank Lloyd Wright's work as a contributing property. The house is one of two Frank Lloyd Wright designed buildings within the Ridgeland Historic District and the only residential home; the other structure is the Unity Temple. Otherwise, the historic district lacks examples of Wright's full-fledged Prairie style that are found in abundance in the nearby Frank Lloyd Wright-Prairie School of Architecture Historic District.The district contains many buildings of merit, including the Oak Park Post Office on Lake Street, designed in 1933 by Charles E. White Jr. and his partner Bertram A. Weber, in 1933, and the Art Deco Medical Arts Building, designed by Oak Park architect Roy J. Hotchkiss.

The Masonic Temple Building (also known as the Scoville Block, Gilmore's Store, and Scoville Square Building) is a historic Prairie-style building in Oak Park, Illinois, at the corner of Oak Park Avenue and Lake Street. It is in the Ridgeland-Oak Park Historic District and was individually listed on the National Register of Historic Places in 1982.The building is one of only a few commercial buildings built in the Prairie School architectural style. The three-story building was built for C. B. Scoville to a design by E. E. Roberts and was constructed between 1906 and 1909. The first floor was designed for retail use, with iron and glass storefronts. A course of limestone separates the storefronts from the upper stories, which are faced with brick. A fourth story was added in 1914. Architectural details in the interior include an oak staircase and a lobby with leaded art-glass windows and marble wainscoting.Oak Park's Masonic lodges were among the building's first tenants. After the Masons vacated the premises, the building was sold to Gilmore's Department Store. The department store used the building from 1930 until it closed in the 1970s. After Gilmore's department store closed, the village of Oak Park bought the building to save it from demolition and contributed public money toward its restoration and renovation. Restoration work including removal of a black glass facade that Gilmore's had applied to the building. The building is now known as the Scoville Square building and houses retail business on the ground floor and offices on its upper floors.

The Medical Arts Building is an Art Deco office building at 715 Lake Street, Oak Park, Illinois. It is a contributing property to the Ridgeland–Oak Park Historic District. At 122 feet, it was the tallest building in Oak Park for several decades after it was built.

The Horse Show Fountain, also known as the Wright-Bock Fountain, is located in the Chicago suburb of Oak Park, Illinois, United States. The fountain, first erected in 1909, has been widely attributed to both sculptor Richard Bock and architect Frank Lloyd Wright. Though the fountain currently stands at the corner of Oak Park Avenue and Lake Street within Scoville Park, neither the fountain nor the location is original. Its original location was 100 ft (30 m) from its present location, and the fountain was completely reconstructed in 1969 to replace the badly deteriorated original. The 4.6-acre (19,000 m2) Scoville Park is listed as a historic district in the U.S. National Register of Historic Places, but the fountain – because it is a replica – is considered a non-contributing property to the listing.

Unity Temple is a Unitarian Universalist church in Oak Park, Illinois, and the home of the Unity Temple Unitarian Universalist Congregation. It was designed by the American architect Frank Lloyd Wright, and built between 1905 and 1908. Unity Temple is considered to be one of Wright's most important structures dating from the first decade of the twentieth century. Because of its consolidation of aesthetic intent and structure through use of a single material, reinforced concrete, Unity Temple is considered by many architects to be the first modern building in the world. This idea became of central importance to the modern architects who followed Wright, such as Ludwig Mies van der Rohe, and even the post-modernists, such as Frank Gehry. In 2019, along with seven other buildings designed by Wright in the 20th century, Unity Temple was added to the UNESCO World Heritage List. The Unitarian Universalist congregation that worships in Unity Temple was formed in 1871, and has no connection with Unity Church, a religious organization founded in 1889.

Oak Park Township is one of 29 townships in Cook County, Illinois and its boundaries are coterminous with the village of Oak Park. As of the 2010 census, its population was 51,878.

Pleasant Home, also known as the John Farson House, is a historic home located in the Chicago suburb of Oak Park, Illinois, United States. The large, Prairie style mansion was designed by architect George Washington Maher and completed in 1897. The house was added to the U.S. National Register of Historic Places on June 19, 1972. Exactly 24 years later, in 1996, it was declared a National Historic Landmark by the United States Department of the Interior.

The Suburban Trust and Savings Bank Building is a bank building at 840 S. Oak Park Avenue, Oak Park, Illinois. It was built in two stages, with the first portion of the building being built in 1925 and opening on May 1, 1926. The front portion of the building was built later and opened on March 31, 1928. It replaced Suburban Trust and Savings Bank Building's previous building which was across the street and had opened fourteen years earlier. The building has also housed medical offices.