In the 1970s, she led a historic preservation campaign to save Grand Central Terminal from demolition and fixing it. A plaque inside the terminal talks about her role in its preservation. In the 1980s, she was a major figure in protests against a planned skyscraper at Columbus Circle that would have created a large shadows on Central Park. Her historic preservation works also include her support of the campaign to save Olana, the home of Frederic Edwin Church in upstate New York.