''Castle La Florentia'' This luxurious estate is among the area's first historic landmarks and is recognized as the jewel of Lake Worth. The architect was the protege of Addison Mizner, the grandfather of Mediterranean-style architecture in South Florida. Built in 1925 as a gift for his wife's birthday by Sherman Child's, the tradition of romance and celebration are engraved in the story of Castle La Florentia. Simply one of the most interesting Mediterranean waterfront estates available in Palm Beach County. Architecturally significant, ''The Birthday Cake Castle'' offers the discerning buyer 135 feet of uninterrupted intracoastal views, an acre of exotic gardens and Polynesian tiki along the intracoastal waterway, an expansive floor plan that features 7,074 sqft AC and 8,401 total liv