The design studio Lazzarini has unveiled plans to build a new $8bn terayacht shaped like a giant turtle in Saudi Arabia.

The size of the new luxury boat is almost too difficult to comprehend. According to The Independent, it will be twice the size of the Roman Colosseum, 550 metres long and 610 metres wide. It is expected to cost $8bn to construct, and its price tag will likely put it beyond the purchasing power of all but roughly a thousand people on earth.

The terayacht is set to be called Pangeos, named after Pangea – a supercontinent that incorporated almost all the landmasses on Earth, that existed during the late Paleozoic and early Mesozoic eras – presumably in a nod to its size. In fact, if and when Pangeos is complete, it will be the largest floating structure on earth.

According to Lazzarini’s website, Pangeos will be “a full-on floating city” with ample space for hotels, shopping malls, parks and even ports for smaller ships and aircraft to get guests there in style.

Pangeos will even feature a real metropolis layout, with blocks, a port and a main square.

As it stands now, construction is set to begin in 2033 and last somewhere around eight years. That’s of course assuming Lazzarrini comes up with $8 billion between now and then.

While it is proposed for Saudi, Pangeos is designed to sail around the world non-stop, as it will be equipped with virtually endless green energy supplies. Powered by 9 HTS engines of 16,800 HP each, Pangeos is expected to cruise at a maximum speed of 5 knots (5.7 mph/9.2 kph), drawing its power from ocean waves and the solar panels-covered roof.

For more on Pangeos and Lazzarrini’s other futuristic projects, visit lazzarinidesignstudio.com/projects