Title: Griffith Park
Content:  Griffith Park is a large municipal park at the eastern end of the Santa Monica Mountains, in the Los Feliz neighborhood of Los Angeles, California. The park covers 4310 acre of land, making it one of the largest urban parks in North America. It is the second-largest city park in California, after Mission Trails Preserve in San Diego, and the 11th-largest municipally-owned park in the United States. The park features a number of popular attractions such as the Los Angeles Zoo, the Autry Museum of the American West, the Griffith Observatory, and the Hollywood Sign. Due to its presence in many films, the park is among the most famous municipal parks in North America. It has been compared to Central Park in New York City and Golden Gate Park in San Francisco, two other notable American municipal parks, but it is much larger, more untamed, and more rugged than either park. The Los Angeles Recreation and Parks Commission adopted the characterization of the park as an "urban wilderness" on January 8, 2014.
Title: City Park (New Orleans)
Content:  City Park, a 1300 acres public park in New Orleans, Louisiana, is the 87th largest and 20th-most-visited urban public park in the United States. City Park is approximately 50% larger than Central Park in New York City, the municipal park recognized by Americans nationwide as the archetypal urban greenspace. Although it is an urban park whose land is owned by the City of New Orleans, it is administered by the City Park Improvement Association, an arm of state government, not by the New Orleans Parks and Parkways Department. City Park is unusual in that it is a largely self-supporting public park, with most of its annual budget derived from self-generated revenue through user fees and donations. In the wake of the enormous damage inflicted upon the park due to Hurricane Katrina, the Louisiana Department of Culture, Recreation and Tourism began to partially subsidize the park's operations. City Park holds the world's largest collection of mature live oak trees, some older than 600 years in age. The park was founded in 1854, making it the 48th oldest park in the country, and established as the "City Park" in 1891.
Title: Central Park
Content:  Central Park is an urban park in New York City located between the Upper West and Upper East Sides of Manhattan. It is the fifth-largest park in the city by area, covering 843 acre. It is the most visited urban park in the United States, with an estimated 42 million visitors annually, and is the most filmed location in the world. Following proposals for a large park in Manhattan during the 1840s, it was approved in 1853 to cover 778 acre. In 1857, landscape architects Frederick Law Olmsted and Calvert Vaux won a design competition for the park with their 
Title: St. Louis
Content:   The city operates more than 100 parks, with amenities that include sports facilities, playgrounds, concert areas, picnic areas, and lakes. Forest Park, located on the western edge of city, is the largest, occupying 1,400 acres of land, making it almost twice as large as Central Park in New York City. The park is home to five major institutions, including the St. Louis Art Museum, the St. Louis Zoo, the St. Louis Science Center, the Missouri History Museum, and the Muny amphitheatre. Another significant park in the city is Gateway Arch National Park, which was known as the Jefferson National Expansion Memorial until 2018 and is located on the riverfront 
Title: Tourism in New York City
Content:  and Electric Zoo; and free performances in Central Park at Summerstage and Delacorte Theater. Many New York City ethnic enclaves, such as Jackson Heights, Flushing, and Brighton Beach are major shopping destinations for first and second generation Americans. New York City has over 28000 acre of parkland and 14 linear miles (22 km) of public beaches. Manhattan's Central Park, designed by Frederick Law Olmsted and Calvert Vaux, is the most visited city park in the United States. Prospect Park in Brooklyn, also designed by Olmsted and Vaux, has a 90 acre meadow. Flushing Meadows–Corona Park in Queens, the city's fourth-largest, was the setting for the 1939 World's Fair and 1964 World's Fair.
Title: List of urban parks by size
Content:  This is a list of the largest urban parks located entirely within a metropolitan area. Park systems are included, but not ranked because park systems are networks that contain multiple urban parks.
Title: City Park, Denver
Content:  City Park is an urban park and neighborhood in Denver, Colorado. The park is 330 acre and is located in east-central Denver. The park contains the Denver Zoo, the Denver Museum of Nature and Science, Ferril and Duck Lakes, and a boathouse. City Park is also the name of the neighborhood that contains the park, though the park is the vast majority of the neighborhood. To the immediate north of the park is the City Park Golf Course. City Park is the largest park in Denver.
Title: Protected areas of the United States
Content:  U.S. counties, cities and towns, metropolitan authorities, regional park systems, recreation districts and other units manage a wide variety of local public parks and other protected areas. Some of these are little more than picnic areas or playgrounds; however, others are extensive nature reserves. South Mountain Park in Phoenix, Arizona, for example, is called the largest city park in the United States; it spans 25 sqmi and contains 58 mi of trails.
Title: Springfield, Massachusetts
Content:  Pond is popular with boaters. ; Forest Park is one of the United States' largest urban parks (at 735 acre) and also one of its most historically important urban parks. Designed by Frederick Law Olmsted—the famed designer of New York City's Central Park—Forest Park is nearly as large, and similarly diverse. Amenities include the Zoo at Forest Park, which features many exotic animals; the United States' first public swimming pool (1899); numerous playgrounds; an ice-skating rink; a formal rose garden; the 31 acre Porter Lake, which features fishing and paddle-boating; 38 tennis courts; numerous basketball and bocce courts; lawn bowling fields; Victorian promenades and water gardens; dozens 
Title: Philadelphia
Content:  , the total city parkland, including municipal, state and federal parks within the city limits, amounts to 11211 acre. Philadelphia's largest park is Fairmount Park which includes the Philadelphia Zoo and encompasses 2052 acre of the total parkland, while the adjacent Wissahickon Valley Park contains 2042 acre. Fairmount Park, when combined with Wissahickon Valley Park, is one of the largest contiguous urban park areas in the United States. The two parks, along with the Colonial Revival, Georgian and Federal-style mansions contained in them, have been listed as one entity on the National Register of Historic Places since 1972.

Question: what's the largest city park in the united states?
Answer: Franklin Mountains State Park.