Alfred Stieglitz’s “Old and New New York”

Stieglitz’s 1910 photo captures a moment on a changing Park Avenue South.

Park Avenue here is still lined with free-standing mansions and townhouses, yet the under-construction Vanderbilt Hotel looms in the distance between East 33rd and 34th Streets.

This photo and others of New York in the early part of the 20th century can be seen at the Met’s Stieglitz, Steichen, and Strand exhibit through April 10.