India, June 8 -- Disney World has left fans heartbroken after announcing the closure of three of its most iconic attractions: Rivers of America, Tom Sawyer Island and the Liberty Square Riverboat. The popular destinations will shutter on July 7 and will be replaced by a new attraction based on the Disney and Pixar "Cars" universe - Piston Peak National Park.

"Imagine an awe-inspiring wilderness filled with towering trees, snowcapped mountains, breathtaking waterfalls, roaring rivers and impressive geysers," the Disney Parks Blog earlier said. "While fictional, Piston Peak is inspired by the Rocky Mountain area and the history and iconic sights of the American Frontier and its national parks."

Disney World visitors, however, have express...