Just teasing! I rode my motorcycle today to the Sands Point Preserve in Port Washington.
The castle was built a century ago by a man for his wife. It was modeled after Kilhenny Castle in Ireland. Turned out the wife didn't like it so she made him build another, more modern residence elsewhere on the 200 acres they owned.
This was the actual site used by F. Scott Fitzgerald for "The Great Gatsby." Now, it's owned by Nassau County and operated as a park. It's a beautiful place to visit on a sunny Summer afternoon.