A question for you - how many railways and ropeways have there been in Hong Kong?
For 'railway' I'll include any place where there were wheeled vehicles running on metal tracks. A 'ropeway' is what we call a cable-car today. And let's say they had to have been built before 1950, to exclude more recent constructions like the MTR, or the Tung Chung cable car.
How many did you count?
I came up with eight railways, and three ropeways. Railways first: