Deep beneath Sofia lies a heavily surveilled network of tunnels, bunkers, and Soviet-era subway stations, Largely unseen, rarely photographed, and almost impossible to access. Sofia Metro Inside Out is the result of almost a decade spent navigating and documenting this elusive metro system from within. Led by the anonymous photographer known only as Errorflict, and his steadfast accomplice Seco, this striking project blends high-resolution photography with wild tales of struggle, fear, loss, and victory. Not only against the authorities, but also against the artists' internal fears.