The Minneapolis-St. Paul Airport Trams and the airport also known as World Chamberlain Field were both constructed by whom?
Minneapolis–Saint Paul International Airport Minneapolis–Saint Paul International Airport (IATA: MSP, ICAO: KMSP, FAA LID: MSP) , also known as Wold–Chamberlain Field, is a joint civil-military public use international airport. Located in a portion of Hennepin County, Minnesota, United States, outside of any city or school district, within 10 miles (16 km) of both downtown Minneapolis and downtown Saint Paul, it is the largest and busiest airport in the six-state Upper Midwest region of Minnesota, Iowa, Nebraska, North Dakota, South Dakota, and Wisconsin.
Miller–Sparta Airport Paul C. Miller–Sparta Airport (FAA LID: 8D4) is a public airport located 3 mi (5 km) southeast of Sparta, Michigan. Established in 1941, the airport is currently owned and operated by the Village of Sparta and is self-supporting, requiring no public funding. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a regional general aviation facility.