Nauta Yachts—the design firm that conceived the world’s largest yacht, the 590-foot Azzam—has revealed its latest project, a seven-deck, 541-foot gigayacht with a mind-boggling array of amenities. The massive yacht is powered by a diesel-electric hybrid system that allows for a cruising speed of 18 knots and a range of more than 6,900 miles.

Guests enter the yacht, which can accommodate as many as 36 guests, through its 1,615-square-foot main deck lobby. The forward section of the main deck houses two VIP s…