Imagine a massive flying hotel that remains in the sky for years. Designed by Yemeni engineer Hashem Al-Ghaili and inspired by Studio Ghibli's "Castle in the Sky," Sky Cruise can host 5,000 guests with amenities like cinemas, pools, and shopping malls, all powered by clean nuclear fusion energy. Despite needing new infrastructure and air navigation protocols, this bold concept aims to inspire innovation in aviation.
