#6 – Ellison Estate, Woodside, California
While he is known as the third-wealthiest man in America, co-founder of Oralce Corporation – Larry Ellison is also known for his specific taste in real estate. Estimated at a price of $110 million, Ellison estate represents a modern implementation of traditional Japanese architecture in the middle of Woodside, California. Comprised of ten buildings erected on 23-acres of land, Ellison estate also features a manmade lake, a koi pond along with a tea house and a bath house. All structures were seismically retrofitted to withstand earthquakes and tremors.