A LAVISH new yacht recreating the billionaire's playground of Monaco is set to become the world's most expensive. The staggering 155-metre Streets of Monaco yacht is expected to cost over $1.1 billion to build and is modelled on a section of Monte Carlo. Currently in the design stage, the super-ship will feature smaller versions of the state’s famous landmarks such as the Monte Carlo Casino and racetrack, as well as swimming pools, tennis courts, a cinema, a go kart track and a Hotel de Paris. Instead of traditional decks the one-of-a-kind ship will have buildings, and instead of a swimming...