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World's Most Expensive Penthouse - $308 million
La Belle Epoque, a penthouse in Monaco, recently become the world’s most luxurious penthouse and the owner of this luxury home is said to be an Arab sheikh. Along with a long list of immaculate luxurious features, the La Belle Epoque penthouse also comes with a panic room with reinforced glass and surveillance cameras and was sold to the new owner for a whopping $308 million.