Airships above you, cars below ground; clean pedestrianised streets, beautiful elegant high-rise living… how exotic the far-off year of 1950 must have seemed to readers of Popular Science Monthly in 1925, when the infographic below was published. Rediscovered by the wonderful Retronaut (Slogan: “the past is a foreign country. This is your passport”) it probably says more about 1925 than it does about 1950. Click the image below to see a big version