The Attessa IV is a luxurious superyacht owned by Microsoft co-founder Paul Allen. The yacht was built in 1998 by the Dutch firm of Oceanco and has been refitted many times since then. It measures at a whopping 130 meters, making it one of the longest yachts in the world, and is equipped with all sorts of amenities such as two helipads, several Jacuzzis, swimming pools, and even its own submarine! As for where it can be found now — that's difficult to answer definitively. Due to its massive size and impressive features, the Attessa IV tends to roam around quite frequently; however it usually spends most of its time cruising around Mediterranean Sea ports like Monaco or Barcelona. Some reports suggest that it has also made appearances off the coast of Seattle (where Paul Allen lives), but this cannot be confirmed without further research. In any case though — if you ever find yourself among those waters there's always a chance you might spot this majestic vessel sailing through!