A triplex penthouse at the Continuum in South Beach has sold for $25 million to an Italian buyer, according to the New York Times. The deal, which closed May 18, is a record for a Miami condominium. Alex Birkenstock, whose family controls the Birkenstock shoe company, was the seller. The previous record was $21.5 million for a penthouse at the Setai South Beach. That home was sold by Netscape founder Jim Clark. [NYT]