Neptune and the Argo (closer look) preside over the main entrance to the former Audubon Ballroom and Theater, where Malcolm X was shot and killed in 1965. Columbia University has since built the multi-story Audubon Business and Technology Center on the site (partially visible at left; bird's-eye view), while also restoring a good portion of the original facade and part of the ballroom where the shooting occurred, and providing space inside for the Malcolm X and Dr. Betty Shabazz Memorial and Educational Center.
That is an impressive facade – I’m glad to see that it has been preserved.