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
Gran Canaria Airport The new terminal area is now fully active, doubling the previous area. There is also a plan for the building of a new runway for the airport. The airport has one terminal which opened in March 1973. It was later extended in October 1991 to increase passenger traffic. Despite being a building of historical interest, in 2013 the original passenger terminal building, opened in 1946, was demolished to make way for a further extension which opened in 2014. Although dramatically expanded over the years the airport remains a single terminal airport. There are four check-in areas. Check-in Area 1 (desks