US$200 million

Skorpios — perhaps most famous for being the site of the wedding of owner Aristotle Onassis to Jackie Kennedy — is to become a luxury resort. Russian potash magnate Dmitry Rybolovlev bought the 200-acre Greek island from Onassis’ granddaughter, Athina Onassis Roussel, in 2013. The Us$200-million project is to include a five-star hotel, a spa, villas, an amphitheatre and a yacht harbour.