A powerful photo project became a love letter to the workers who built L.A. Metro's D Line

Photographer Ken Karagozian, who began documenting L.A. Metro construction workers in 1995, has collaborated with historian India Mandelkern on a photo book titled "Wilshire Subway: The Making of the D Line Subway Extension." The book chronicles the history, conflicts, and the workers behind the D Line extension along Wilshire Boulevard, ahead of its May 8 opening. A related exhibition, "Wilshire Subway: Photographed by Ken Karagozian," is on view at the 1301PE art gallery through May 14.