#2: Gemini, Florida: 62,220 sq ft
This beautiful 15-acre estate sits on a private barrier island in Manalapan, Florida, between the Atlantic Ocean and Lake Worth. Named Gemini, the estate is currently on the market for $137 million (£105m) and is perched on top of a dune with 360-degree views of the beautiful surroundings.
Inside, the house has two four-bedroom beachside cottages, a seven-bedroom house and a guest house comprising of four studios and apartments. This means that overall there are more than 30 bedrooms.
Of course, no estate this size would be complete without some pretty impressive perks. As well as fabulous décor, the property also comes with a series of formal and informal living and dining areas, a media room, libraries, offices, numerous terraces, an expansive wine cellar, and two elevators.
If that wasn’t enough, you’ll also find a swimming pool, golf area, tennis court, basketball court, fitness center, and a spa. However, if you are looking for something a little more serene, you can spend the afternoon in your own botanical gardens, or simply gazing out onto the beautiful views from the comfort of your own home.