5. $69.8 million: 331 Greer Road – Woodside, California (94062)
This next mansion sits in Woodside, California, and is listed at $69.8 million. The nine-bedroom, eight-bathroom estate spans 9,000 square feet and sits on 91.94 acres. Built in 1947, the colonial landmark has been on the market for 364 days. Its owners may have no choice but to bring the price down if fish continue to ignore the bait, but as of now, they’re willing to wait it out for a buyer for this historical gem.