This indoor scene depicts an escalator in what appears to be a public transportation station, likely a subway or metro station

This indoor scene depicts an escalator in what appears to be a public transportation station, likely a subway or metro station. The escalator has metal treads and a glass or clear plastic side barrier. The surrounding walls are gray and have large tiles. Directional signage in both Bulgarian and English is visible, indicating the way to "К Хаджи Димитър" (Hadzhi Dimitar) and "ж.к.Овча купел Горна баня" (Ovcha kupel Gorna banya). There is also a "Not an entrance" sign. Based on the signage, this scene is in Sofia, Bulgaria.