American Airlines Flight 191

The Gas Technology Institute is an American non-profit research and development organization which develops, demonstrates, and licenses new energy technologies for private and public clients, with a particular focus on the natural gas industry. GTI is located in Des Plaines, Illinois.

O'Hare, located on the far north side of Chicago, is one of the city's 77 community areas. O'Hare International Airport is located within the boundaries of this community area. This community area is the only one that extends outside Cook County; the western edge (an area comprising the southwest part of the airport) is in DuPage County. The area is a transportation hub containing O'Hare International Airport as well as major roads such as Interstate 90, its auxiliary Interstate 190, Interstate 294, Illinois Route 72, Illinois Route 171, U.S. Route 12 and U.S. Route 45. This allows the O'Hare neighborhood, combined with the nearby suburb of Rosemont, to work as an edge city.

On December 27, 1968, North Central Airlines Flight 458 crashed into a hangar while attempting a night landing in poor weather at O'Hare International Airport in Chicago, Illinois, in the United States. Of the 41 passengers and four crew members, only 17 passengers and one crew member survived. One person was killed and six were injured on the ground.: 6 

Maine West High School, also known as Maine West, MWHS, and officially known as Maine Township High School West, is a public four-year high school located in Des Plaines, Illinois, a northwest suburb of Chicago, Illinois, in the United States. It is part of Maine Township High School District 207, which also includes Maine East High School and Maine South High School. Maine Township High School West serves most of Des Plaines and a portion of Rosemont.

The 100 gecs tree (also nicknamed Gecca) is a ponderosa pine located in Des Plaines, Illinois, in the United States. It was featured in the cover art for the 2019 album 1000 gecs by the American musical duo 100 gecs and has since become a popular attraction for fans.

Lake Opeka is a small, 40 acres (16 ha) lake in Des Plaines, Illinois. On the shores of Lake Opeka, Lake Park is a 60 acres (24 ha) park which offers a wide variety of outdoor recreational opportunities for all age groups, administered by the Des Plaines Park District, with an 18-hole par-3 golf course. On the northern bank is Good Shepherd Lutheran Church. Jogging paths run around the east side, where a band shelter is located amongst picnic tables and grills, exercise stations and a playground. The southern end has a volleyball sand pit. Rumor has it that there is a jeep underwater along with an old road.Fishing is allowed. Bass, bluegill and occasional northern pike are caught. There are small sailboats and paddleboats using the lake. Many ducks are on the water, some large carp and occasional turtles. 460 man-hours were spent removing submerged and surface vegetation from the lake, to prevent its becoming a threat to aquatic life (due to its using up the oxygen supply when decomposing). The vegetation consisted of the native slender naiad (Najas flexilis), and an excessive amount of filamentous algae.

The Geospatial Professional Network (GPN) (formerly known as Urban and Regional Information Systems Association (URISA)) is a non-profit association of professionals using geographic information systems (GIS) and other information technologies to solve challenges at all levels of government. GPN promotes the effective and ethical use of spatial information and technology for the understanding and management of urban and regional systems.

Des Plaines is a city in Cook County, Illinois, United States. Per the 2020 census, the population was 60,675. The city is a suburb of Chicago and is located just north of O'Hare International Airport. It is situated on and is named after the Des Plaines River, which runs through the city just east of its downtown area.

The 928th Airlift Wing is an inactive United States Air Force Reserve unit. It was last active with the Twenty-Second Air Force at O'Hare Air Reserve Station, Illinois, where it was inactivated on 1 July 1997.

Chicago O'Hare International Airport (IATA: ORD, ICAO: KORD, FAA LID: ORD), sometimes referred to as Chicago O'Hare, or simply O'Hare, is the main international airport serving Chicago, Illinois, located on the city's Northwest Side, approximately 17 miles (27 km) northwest of the Loop business district. Operated by the Chicago Department of Aviation and covering 7,627 acres (3,087 ha), O'Hare has non-stop flights to 214 destinations in North America, South America, the Caribbean, Europe, Africa, Asia, the Middle East, Oceania, and the North Atlantic region as of November 2022. As of 2022, O'Hare is considered the world's most connected airport.Designed to be the successor to Chicago's Midway International Airport, itself nicknamed the "busiest square mile in the world," O'Hare began as an airfield serving a Douglas manufacturing plant for C-54 military transports during World War II. It was renamed Orchard Field Airport in the mid-1940s and assigned the IATA code ORD. In 1949, it was renamed after aviator Edward "Butch" O'Hare, the U.S. Navy's first Medal of Honor recipient during that war. As the first major airport planned after World War II, O'Hare's innovative design pioneered concepts such as concourses, direct highway access to the terminal, jet bridges, and underground refueling systems.O'Hare became famous during the jet age, holding the distinction as the world's busiest airport from 1963 to 1998; today, it is the world's fourth-busiest airport for passenger counts, serving 54 million passengers in 2021. In 2019, O'Hare had 919,704 aircraft movements, averaging 2,520 per day, the most of any airport in the world in part because of a large number of regional flights. On the ground, road access to the airport is offered by airport shuttle, bus, or taxis by Interstate 190 (Kennedy Expressway), which goes directly into the airport. O'Hare serves as a major hub for both United Airlines (which is headquartered in Willis Tower) and American Airlines. It is also a focus city for Spirit Airlines.

O'Hare is a Chicago "L" station located at O'Hare International Airport, 17 miles (27 km) northwest of The Loop. The northwestern terminus of the Chicago Transit Authority's Blue Line, it is a subway station with two island platforms serving three tracks, situated under the parking garage for Terminals 1, 2, and 3. Trains are scheduled to depart from O'Hare every 2–7 minutes during rush-hour periods and take about 40 minutes to travel to the Loop. It is the westernmost station of the Chicago 'L' system. It is also the only station without coordinates in Chicago's grid system, the only underground terminus, and is the only terminal that does not directly connect to any CTA or Pace buses. It is also one of two terminals (the other being Dempster–Skokie on the Yellow Line) that does not have a yard assigned to it (the yard is located at Rosemont, one stop east).

On March 24, 2014, a Chicago Transit Authority (CTA) passenger train overran the bumper at O'Hare station, injuring 34 people.