4. Bally's Resort
On March 27, 2002, Johanna Huendl was on her way to breakfast and stopped to try her luck and play the Megabucks slot machine with $170. To her surprise, she won over $22.5 million. Initially, she misread the meter and thought she had won $2 million. But, later, she realized there was an extra zero at the end. She was just visiting Las Vegas for vacation and became a millionaire at the end of the trip.
Total Winnings: $22,618,156.67
