asi zelňačka (mainly in czech)
(fork of http://severak.soup.io/)
Aerial photo of Varshavskoye metro depot in Moscow (Russia). by A.Savin
from https://upload.wikimedia.org/wikipedia/commons/thumb/e/e3/Moscow_05-2017_img46_Varshavskoe_Depot.jpg/800px-Moscow_05-2017_img46_Varshavskoe_Depot.jpg