An experimental study of flow past several parallelepipeds placed in a row perpendicular to the velocity vector of the forward flow has discovered the existence of a large number of flow regimes. The boundaries of the regions of multiple regimes have been defined. The author observed such nonuniqueness of steady flows for several parallelepipeds placed in a series across the flow. The experiments were conducted in AT-12 wind tunnel of Leningrad University with an open working part diameter of 1.5 m. Most of the tests were done with parallelepipeds placed on a screen dividing the working part of the tunnel.