Travel. Cities. Germany, Hamburg. pic: circa 1930's. The Planetarium in the town park, Hamburg. [Getty Images]

Travel, Cities, Germany, Hamburg, pic: circa 1930's, The Planetarium in the town park, Hamburg (Photo by Popperfoto via Getty Images/Getty Images) — see more

Travel, Cities, Germany, Hamburg, pic: circa 1930's, The Planetarium in the town park, Hamburg (Photo by Popperfoto via Getty Images/Getty Images)

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