Not a map, but included because this is possibly the strangest piece of transit infrastructure I’ve ever seen. Discovered while researching the post about Cincinnati’s abandoned subway, this photo shows what happened when that city’s streetcars met the steep hills surrounding the downtown area.

At this time, the streetcars were used in conjunction with four of Cincinnati’s five inclined railways: the Mount Adams Incline, Mount Auburn Incline, Bellevue Incline, and the Fairview Incline. The cars would be driven onto the platform, which was level and was equipped with rails and (in most cases) overhead trolley wires. The platform, riding on its own rails, would then be pulled up the hill by the cable, carrying the streetcar. Upon reaching the top, the streetcar could simply be driven off the platform onto the standard track along city streets. The 1872-opened Mount Adams Incline began carrying horsecars in 1877, and it was later strengthened for use by electric streetcars, which were much heavier.

More information on the inclines here.

Source: Wikimedia Commons