Paris for 31 percent of the GDP of France. According to the Economist Intelligence Unit Worldwide Cost of Living Survey in 2018, Paris was the second-most expensive city in the world, behind Singapore and ahead of Zurich, Hong Kong, Oslo and Geneva. The city is a major rail, highway, and air-transport hub served by two international airports: Paris-Charles de Gaulle (the second busiest airport in Europe after London Heathrow Airport with 69.5 million passengers in 2017) and Paris-Orly. Opened in 1900, the city's subway system, the Paris Métro, serves 5.23 million passengers daily, and is the second busiest metro system in
Machesney Airport Guilder had been barnstormers, like the airport owner. A tornado in 1966 damaged hangars and aircraft at the airport. After the Greater Rockford Airport opened, business at Machesney Airport declined and it closed in 1974. The name of the airport founder, was used to name the new Machesney Park Village, formed within the bounds of what is still called North Park. After closing, the airport property was used to house the Machesney Park Mall. Machesney Airport Machesney Airport was a small rural airport located in Machesney Park, Illinois. The airport was organized by Fred Machesney in 1927. The airfield was