Dizzying heights, soaring verticals, and spectacular views of New York's skyscrapers inspired some of Georgia O'Keeffe's most memorable paintings. She not only painted these wonders of modern architecture, she was also one of the first American artists to live in a skyscraper. In the mid-1920s, she and her husband, photographer and gallery directory Alfred Stieglitz, had an apartment on the thirtieth floor of the Shelton Hotel.