At which New York address was Alfred Stieglitz's gallery 291 located?

Alfred Stieglitz's gallery 291 was located at 291 Fifth Avenue in New York City.

The gallery took its familiar name from its street address: number 291 on Fifth Avenue. It began as the Little Galleries of the Photo-Secession in 1905 and was later known simply as 291. The space became one of the most influential early venues for modern art in the United States.

Stieglitz used the gallery to exhibit progressive photography and European modern art, as well as work by American artists. Georgia O'Keeffe's drawings were shown there in 1916, an event that helped introduce her to New York's art community.

The address is easy to confuse with the name of the gallery itself or with other Manhattan art venues associated with Stieglitz. 291 Fifth Avenue identifies the physical location, while 291 identifies the gallery. The building no longer functions as the historic gallery, but the address remains central to accounts of its history.