George McKesson Brown Estate -- Coindre Hall - Credit: Wikimedia Commons
Coindre Hall, originally called West Neck Farm, is a 40-room, mansion in the style of a medieval French château completed in 1912 for pharmaceutical magnate George McKesson Brown. Coindre Hall sits on of rolling land overlooking Huntington Harbor, near the Long Island Sound. Read more on Wikipedia
Source: en.wikipedia.org