He experienced hallucinations and saw mirages during his famous flight

The main difficulty Charles Lindbergh faced on his transatlantic trip, except navigating the hazy Atlantic, was just staying awake. Nine hours into his 33-hour of the nonstop journey from New York to Paris, Charles Lindbergh wrote in his memoirs that he had to overcome the strong urge to fall asleep. It's one of the most interesting facts about Charles Lindberg. He was so tired that he would occasionally close his eyes and drift off, and from lack of sleep, he even had hallucinations.

In an effort to stay awake, Charles Lindbergh went so far as to buzz the ocean's surface, but 24 hours into the flight, his lack of sleep caused him to go delirious. Later, he described seeing "vaguely delineated figures, transparent, moving, riding weightless with me in the plane" and "fog islands" developing in the water below.

Even more, Lindbergh insisted that the ghostly figures spoke to him and gave him advice for his travels. After a little while, the hallucinations subsided, and a few hours later, the fatigued pilot touched down in Paris to the cheers of more than 150,000 onlookers.