#10: La Da Vinci, Florida: 40,916 sq ft
This sprawling beachfront pad was built in 1930 by architect Maurice Fatio, who was famous for his luxury, Mediterranean-style mansions. La Da Vinci is currently owned by billionaire Jim Clark who put it on the market back in 2016 for $137 million (£105m). Without a sale, he was forced to slash the asking price to $115 million (£88m) earlier this year.
The interior is lavishly decorated, with sumptuous furnishings and carved vaulted ceilings. The entrance has a grand two-story foyer, with a choice of 10 bedrooms and 26 bathrooms, as well as an indoor theatre, library and billiard room for entertaining.
An impressive limestone wine cellar can hold up to 20,000 bottles, while a secondary cellar houses a further 1,000. La Da Vinci also boasts a gym and a spa in addition to an underground tunnel that discreetly connects the main house to a three-bedroom beach house on the beachfront.
Outside, a secluded Mediterranean courtyard surrounded by white stone pillars provides a place to relax. Beyond the outdoor space is a stylish outdoor swimming pool dotted with sunbeds and a granite statue. There’s also an additional oceanfront infinity pool alongside the beach house, all sitting within approximately five and a half acres of land.