Train stations are liminal spaces, an intersection of people leaving and people returning, people beginning a journey and people completing one. There is a striking symmetry to this liminality, in both time and space. The temporal symmetry of departing and arriving, of traveling in one direction and the other, is mirrored in the formal symmetry of the structure of train stations, and of the trains themselves. The twenty-five photos in this book celebrate and explore these symmetries in time and space. This first volume explores transit in Prague, in Amsterdam, and aboard a Thalys high speed train somewhere in the Belgian countryside.