Lady S - @discoverjonno

Lady S is a 68.5m luxury motor yacht built by Amels in 2006. She is powered by engines of 2374 hp each giving her a maximum speed of 17 knots and a cruising speed of 15.5 knots. Lady S was designed by Walter Franchini Architetto.
Galactica Super Nova - @jmy76

Galactica Super Nova is the largest Heesen yacht yet. Designed by Van Oossanen Naval Architects, the 70m superyacht combines high speed with increased stability. Built for a repeat client, she can reach a top speed in excess of 30 knots thanks to twin MTU 20V 4000 engines of 5760 hp each and a third additional booster jet.
Venus - @yachts_la_ciotat

Venus, 78 metre aluminum yacht engineered by De Voogt Naval Architects with styling by Philippe Starck, was launched in 2012 and last refitted in 2015. One of the best Feadship superyachts of all time, Venus has a wide array of interesting style features, from her highly innovative glass exterior design to the reported high-tech amenities. The vessel is extremely secret with no interior pictures ever seen.
Alfa Nero - @Superyachts_gibraltar

Alfa Nero was launched in 2007 by Dutch shipyard Oceanco. Measuring 82m, the yacht features exteriors by Nuvolari & Lenard and interiors from the talented Alberto Pinto.

Officially the world's largest yacht measured by gross tonnage, 156m Dilbar has been spotted in Sardinia, Italy. Built by German shipyard Lurssen, the displacement yacht has a steel hull and aluminium superstructure. Dilbar's exterior design comes from Espen Oeino with interiors by Andrew Winch.