Terayachts, even bigger than super, mega and gigayachts, would be the most outré choice, especially in a time of economic crisis.
This new luxury boat, called Pangeos, will cost a whopping $8 billion to construct, according to the designers Lazzarini. It is named after Pangea, a supercontinent that existed from 200 million to 335 million years ago.
It's no wonder the structure is so expensive when, if funded, it will become the largest floating structure ever built. The structure, which looks like something a Bond villain would have, would be 550 meters (1,800 feet) long and 610 meters (2,000 feet) wide.
The yacht will be shaped like a tera-turtle and will have space for hotels, shopping malls, parks, and ports for smaller ships and aircraft.
The designers of the "floating city" have said that it would need to be built in a special place that doesn't exist yet.
They have suggested that Saudi Arabia would be a good location for it. They estimate that they would need to dredge up around one square kilometer of sea and build a circular dam before they could start construction on the city.
They have identified a spot at King Abdullah Port, 81 miles north of Jeddah, as the ideal location for the city.
Pangeos is designed to be divided into blocks like an actual city, with a port and main square, off which other buildings spiral. An "upper shell" area, surrounded by garden spaces, would act as a landing spot for aircraft.
The yacht would have 30,000 "cells" below the living space to keep it afloat, a steel basement, and a massive 30 meter draft. It would be able to cruise at a speed of five knots while the "wings" would draw energy from waves. The roof would have solar panels to power the yacht.
The tera-turtle would not have a set itinerary or port, but would instead cruise around, making the journey the destination.
Lazzarini is hoping that construction for the floating city will start in 2033 and that it will take a total of eight years to build. If you're interested in seeing the city for yourself, there is a crowdfunding initiative that allows you to purchase virtual tickets or apartments.
The issue now is to find the rest of those $8 billion...
