[Beginning demolition of 6th Avenue El.]
[Demolition of 6th Avenue El.]
[Beginning demolition of 9th Avenue El.]
[The 6th Avenue "El".]
[53rd Street, looking west between 6th and 7th Avenues.]
[Third Avenue El at 6th Street.]
[Third Avenue El at 29th Street.]
[Demolition of the Sixth Avenue El.]