Check out this ?L450 billion [$561 billion USD] concept superyacht. The 650ft-long mega-catamaran has a built-in harbour and an 250-yard pier. Created by German designers the Galileo2 [Galileo Squared] Catamaran is so big, it would feature the docking area for smaller craft under the main deck - a kind of 'floating marina'. It is also set to have an 'amphitheatre style' open-air cinema, and a 5300sq ft pool, designers Beiderbeck Designs said. It is also likely to feature its own hospital. The planned vessel has been described as 'the greatest concept' ever, and can sleep 38 guests, with room for 75 staff. The designers revealed it will be powered by a methanol propulsion system and will 'pioneer geothermal energy' in yachting. There will also be a helicopter platform with room to store the aircraft, and a place to refuel. It has a top speed of 22 knots and a range of 19,000 miles. A spokesperson for the Beiderbeck Designs said: "We estimate the costs at around 500 billion euros (?L450 billion GBP / $561 billion USD) without toys and a with just the standard interior. "If you want luxury interior, there are no limits on what the price might be. "We believe it is the greatest concept that has ever been developed for a catamaran." Editorial usage. Credit Courtesy of Beiderbeck Designs/MEGA. 29 Jun 2020 Pictured: Pool and cinema area. Photo credit: Beiderbeck Designs/MEGA TheMegaAgency.com +1 888 505 6342