This is the historic Johnstown inclined plane in Pennsylvania. I have already shown you a few other inclines in the state, but this one is unique for a lot of different reasons. First, it is listed in the Guinness book of World records as the “The steepest vehicular inclined plane in the world”. What this means is that out of all the inclines that can carry vehicles, this is the steepest in the world. It has a slope of 35 degrees with a grade of 70.9 percent.

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