The Glasgow Subway is an underground metro system in Scotland.

It opened on 14th of December 1896, it is the third oldest subway system in the world after the London Underground and the Budapest Metro.

It was unique in being the only cable-operated underground railway in the world.

Pictured here, are the directors, engineers, and officials of the original Glasgow District Subway circa 1896.

Most station entrances were buried in store-front locations: if you didn't know the subway entrance was there, you might take a long time finding it.

This station was the exception.

The cable system was characterized by a number of unusual features. There were two cables, driven by steam from a main power station, one for each tunnel. Each cable was an inch and a half thick, and weighed about 57 tons. The cables were placed between the tracks, kept in motion during the whole of the time that the line was open to traffic, and ran at a uniform speed of twelve and a half miles an hour.

Originally a cable railway this Subway was later electrified, but its twin circular lines were never expanded.

Officially called the Glasgow Underground between 1936 and 2003, it has reverted to its colloquial name of Subway.