Van Geest Domus Electric Trimaran
Named for the single-story homes of Pompeii and Rome, Van Geest Design's Domus uses its unusual shape to pack in a huge amount of living space. The 130-foot vessel manages to pack in nearly 8,500 square feet of space across two decks, including six guest cabins (two of them master suites), a bar, cinema, gym, spa, and a swimming pool. A hybrid system of solar power, hydro-regeneration, hydrogen fuel cells, and a traditional sail gives it unlimited range with zero emissions, and it can heel up to two degrees to maximize speeds.