This 9 acre estate is located in Upper Brookville, NY. It was built in the early 80’s by billionaire Charles Wang who founded Computer Associates and bought the NY Islanders. He sold it for $3,135,000 back in May of 2007. It boasts 17,564 square feet of living space with 7 bedrooms, 8.5 bathrooms, recreation room, indoor racquetball court, indoor swimming pool, outdoor swimming pool and much more. It is listed at $5,299,000.