As an employee at Drop Tower, I would like to clarify that the the title is awarded to the height of drop. Not the height of the tower. For example, Drop Tower drops you 267 feet at 65 miles per hour but the entire towers height is 315 feet. When the ride came out in 1999 it was in fact the worlds tallest Gyro Drop, which in simple terms means that the structure is round with a full ring around it. So things like Power Tower at Cedar Point would not be considered a Gyro Drop. Also, as time passes by, in the 18 years the ride has been alive, technology has been improved and there are other gyro drops with higher falls. The one thing that will be true for quite some time is that Drop Tower is the safest ride at Kings Island due to the use of Neodymium magnets and ferromagnetic metals. Its a flawless braking system and the restraint system makes it even more safe with the transfer mechanism and the good old Intamin Seat Belts. Summary: Drop Tower was the worlds tallest Gyro Drop, but no longer is.