[Sixth Avenue El train station.]

[Sixth Avenue El, Rector Street station.]

[Sixth Avenue El.]

[Sixth Avenue El, Rector Street station.]

[Sixth Avenue El, Rector Street station.]

[Sixth Avenue El.]

[Underneath the Sixth Avenue El.]

[Underneath the Sixth Avenue El.]

[Sixth Avenue El, Rector Street.]

[Sixth Avenue El.]

[Sixth Avenue El.]

[Sixth Avenue El.]

[Sixth Avenue El.]

[Sixth Avenue El, Cortlandt Street.]

[Underneath the Sixth Avenue El.]

[Sixth Avenue El.]

[Demolition of the Sixth Avenue El.]

[Sixth Avenue El.]

[Sixth Avenue El.]

[Bifurcation of the Sixth and Ninth Avenue Els.]