Attessa III is owned by Microsoft co-founder and billionaire philanthropist Paul Allen. Built in 2004, the superyacht weighs 7,000 tons and is one of the largest yachts ever built. It has an impressive length of 316 feet (96m) and a maximum speed of 17 knots with its two diesel engines. Attessa III has five decks that feature a swimming pool, helipad on top deck, gymnasium, spa area as well as six guest rooms for up to 12 guests. The interior design was created by Jonathan Quinn Barnett who also designed some parts for other large yachts like Octopus owned by Paul G. Allen’s sister Jody Allen Patton or Rising Sun which belongs to Oracle founder Larry Ellison.