Leisure, Theme Parks, USA, pic: circa 1956, The Disneyland complex at Anaheim, California, showing the "Rivers in America" in Frontierland [Getty Images]

Leisure, Theme Parks, USA, pic: circa 1956, The Disneyland complex at Anaheim, California, showing the "Rivers in America" in Frontierland (Photo by Paul Popper/Popperfoto via Getty Images/Getty Images)

Popperfoto Paul Popper/Popperfoto