Which New York skyscraper series did Georgia O'Keeffe begin after moving to the city in 1918?

Georgia O'Keeffe began her New York skyscraper paintings after moving to the city in 1918. The series transformed urban architecture into simplified, dramatic compositions and showed that modern American subjects could become material for serious modernist painting.

O'Keeffe had previously developed abstractions in charcoal and watercolor. In New York, she looked from apartment windows and painted buildings, streets, and nighttime light. Works such as New York Street with Moon and New York Night express the city's vertical scale without functioning as straightforward architectural records.

The skyscraper paintings are often overshadowed by her flowers and New Mexico landscapes, but they were central to her early mature career. The subject also distinguishes her from artists known mainly for rural or Southwestern scenes. O'Keeffe's urban works demonstrate that her interests ranged from intimate natural forms to the dense, engineered environment of Manhattan.