Superman: Escape from Krypton has an incredible 415 feet-tall tower. It holds the distinction of being the first coaster to reach 100 mph. When it debuted in 1997 (as Superman: The Escape), it was the world's tallest, fastest coaster. However, it often fell shy of its theoretical top speed of 100 mph -- when it was running. The prototypical ride often broke down.
In 2011, Six Flags made Superman over with new cars, and it is running higher and presumably faster. It also does not have as much downtime.
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