Principality of Monaco with in the centre large construction site of the new district Mareterra, previously called Anse du Portier, architect Renzo Piano (below) a. with luxury real estate for billionaires and new marina, in the back rocks with the old town, seen from Roquebrune Cap Martin, Mediterranean Sea Principality of Monaco with in the centre large construction site of the new district Mareterra, previously called Anse du Portier, architect Renzo Piano (below) a. with luxury real estate for billionaires and new marina, in the back rocks with the old town, seen from Roquebrune Cap Martin, Mediterranean Sea Principality of Monaco with in the centre large construction site of the new district Mareterra, previously called Anse du Portier, architect Renzo Piano (below) a. with luxury real estate for billionaires and new marina, in the back rocks with the old town, seen from Roquebrune Cap Martin, Mediterranean Sea Principality of Monaco with in the centre large construction site of the new district Mareterra, previously called Anse du Portier, architect Renzo Piano (below) a. with luxury real estate for billionaires and new marina, in the back rocks with the old town, seen from Roquebrune Cap Martin, Mediterranean Sea