The High Line, New York City's popular elevated park, has received a $20 million gift.
The gift from the Diller-von Furstenberg Family Foundation was announced by Mayor Michael Bloomberg on Wednesday.
It will help pay for the design of the last section of the park and also build up the park's endowment.
City officials said it was the single largest donation ever made to a New York City park, according to The New York Times.
It comes after two other donations totaling $15 million from Barry Diller, chairman of IAC and Expedia, and his wife, the designer Diane von Furstenberg.
The High Line is built on abandoned railroad tracks 30 feet above ground.