Part of the now derelict power station complex which operated when the system was cable hauled between 1896 and 1935. Category B Listed http://portal.historicenvironment.scot/designation/LB33532 . Viewed from a passing train.
See the scene in July 2020 [[6533521]].
Canmore: https://canmore.org.uk/site/44234/glasgow-187-scotland-street-subway-power-station .