The Old Pennsylvania Station, NYC, 1910-1963, McKim, Mead, and White Architects.
When the original Beaux-Arts station was torn down in 1963 there was such an uproar from the citizens of NYC that the New York City Landmarks Preservation Commission was established. The loss of historic architecture to make way for future projects is a double-edge sword, what went up in its place is Madison Square Garden. The destruction of this building was featured in an episode of the television series Mad Men.