Andrey Melnichenko is a Russian billionaire and businessman that built sailing yacht ?A?, an astonishing 468 feet (143 metres) long that has three masts taller than the clock tower that houses Big Ben on the Houses of Parliament in London.

The vessel, which cost Mr Melnichenko ?400 million (?292 million or $451 million) to build, is one of the most advanced yachts of its kind.

Melnichenko spent $451 million on the building of the yacht, the way to recover some of the costs? He will license the technology developed for the vessel for commercial applications. That?s how you stay rich!

Sailing Yacht A has eight decks and its keel incorporates one of the largest single pieces of curved glass ever made, measuring 193 square feet and weighing 1.8 tons.