in 1955. The restaurant was demolished in 1984, and a replica was built on the site as a museum dedicated to McDonald's history. In 2017, McDonald's announced plans to demolish the building due to repeated flooding. The building has since been demolished. In 1979, Des Plaines was the site of the accident of American Airlines Flight 191, in which a McDonnell Douglas DC-10 departing from O'Hare lost an engine and wing material and crashed near a local trailer park just north of Touhy Avenue. All 271 people on board the aircraft died, as did two workers at a repair garage. Two more, along with three civilians, were injured. In 2008, the Illinois Gaming Board awarded the state's 10th casino license to Midwest Gaming and Entertainment LLC to build a casino on approximately adjacent to the Tri-State Tollway at the northwest corner of Devon Avenue and Des Plaines River Road. Midwest Gaming received the award despite having the lowest bid because other bidders were found unacceptable by the Board, with one board member finding no bidders acceptable. The city approved zoning in early 2010, and the casino opened in July 2011 as Rivers Casino. On July 29th, 2022, the third largest winning lotto ticket in US history valued at $1.34 billion was sold at a Speedway gas station in Des Plaines near O'Hare Airport on Touhy Ave. , the winning ticket holder has not come forward or been identified. Geography According to the 2021 census gazetteer files, Des Plaines has a total area of , of which (or 98.98%) is land and (or 1.02%) is water. Des Plaines is traversed by two interstate highways – I-90 (the Northwest Tollway) and I-294 (the Tri-State Tollway). Des Plaines is named for the Des Plaines River, which flows through it. The name is from 18th-century French referencing the American sycamore which resembles the European plane tree. Portions of Des Plaines are underlain by the "Des Plaines Disturbance", an area in which the layers of sedimentary rock are highly abnormal. This probably represents an ancient meteorite crater, beneath the town. The bedrock was highly fractured by the impact, with large blocks of sediment upended. The crater was eventually filled by glacial activity, so that no trace now remains on the surface. Addresses in the city limits of Des Plaines have their own numbering system. Areas in unincorporated Maine Township have Des Plaines postal addresses that