Ridgewood Reservoir - Credit: Wikimedia Commons
Ridgewood Reservoir is a decommissioned 19th century reservoir and freshwater wetland on the border between the New York City boroughs of Brooklyn and Queens, within what is now Highland Park. Although the reservoir was originally built to secure a reliable water supply for the City of Brooklyn, it is positioned on the Queens side of the border in the neighborhood of Glendale. The reservoir and park are bounded on the north by the Jackie Robinson Parkway, on the south by Highland Boulevard, on the west by Vermont Place and on the east by Cypress Hills National Cemetery. Read more on Wikipedia
Source: en.wikipedia.org