In the subway, they told the history of the appearance of columns at the Avtovo station
In the St. Petersburg metro, they told why not all columns at Avtovo station are glass. In the subway, it was explained that according to the initial project, all 46 columns at the station should have been glass. Now 30 of them are faced with marble, and the remaining 16 glass, but only in appearance. At the station, an illusion of entirely glass columns was created, but inside them is a concrete structure. Also, columns are overlooked by a decorative shiny ribbon.