1. Son of Beast

Opened as a "sequel" to Kings Islands legendary The Beast wooden coaster in 2000, Son of Beast was meant to be similarly groundbreaking. Standing at some 218-feet-tall, it was tallest and fastest wooden roller coaster in the world. The ride was also constructed with a 118-foot vertical loop in its circuit, making it the first modern wooden coaster to incorporate such an inversion.

Very quickly, Son of Beast developed a reputation for roughness. Then, disaster struck in July 2006, when the ride was closed after a part of its structure failed, leading to an incident in which several riders suffered injuries. As a result, the ride's trains were replaced with lighter versions to reduce stress on the track, and the signature loop was removed.

Son of Beast was closed again in June 2009, when a woman claimed that it caused a blood vessel in her brain to burst. Ohio state investigators later ruled that the ride design was not at fault for the injury, but Kings Island opted to keep the ride closed while it considered options for its future. It never reopened, and has now been dismantled. Kings Island is believed to have considered overhauling it once again, but the cost of doing so and the negative public perception of the ride may have resulted in the decision to remove it for good.