World War II brought further population increases—more than 300,000 between 1940 and 1943—and a significant housing shortage, as existing residents were urged to rent rooms to the influx of Federal staffers who arrived from throughout the country. "It is a terrible place to live", "Life" magazine wrote in 1943; the city's infrastructure was unable to grow as fast as the population, and residents had to wait in long lines for food, transportation, shopping, entertainment, and almost every other area of life. During the war, as many as 200,000 railroad passengers passed through Union Station in a single day. The Pentagon was built in nearby Arlington to efficiently consolidate Federal defense offices under one roof. One of the largest office buildings in the world, it was built rapidly during the early years of the war, partially opening in 1942, and complete in 1943.