The first edition will show you behind the scenes of the Helsinki, Moscow, Paris, Prague, and Vienna metros. The book was compiled in cooperation with the archive departments and metro managements of these cities. It is well known that only a few people get the unique opportunity to personally see metro trains right in the tunnel or depot, and this album opens the doors with the "Entrance for authorized personnel only" sign. The publication presents more than 350 colourful photos of metro trains in depots, in tunnels, and at stations. A lot of rare archival photographs have been colourised. You will see rare, previously unpublished archived images.