FROM a converted plane to a mock Roswell UFO craft-here are some of weirdest and wackiest McDonald's restaurants around the world. The fast food chain-which has more than 35, 000 stores worldwide-has undergone massive changes since it's first restaurant in San Bernardino, California, in 1955.... 16 This restaurant in Maine, USA, was once a ship captain's mansion Credit: Getty-Contributor FLOATING ABOUT This McDonald's store was moored on the Mississippi River and was the first ever to open as a