The boat will be 482 feet (147 meters) long — or about 1.3 times the length of a standard American football field (counting the end zones).

That, as noted by Frank, would dwarf the 289-foot-long "Maltese Falcon" unveiled by Silicon Valley venture capitalist Tom Perkins in 2006 and considered the largest privately owned sailing yacht in the world.

Construction of the new ship has been "shrouded in secrecy" since 2012, according to Frank, so not too many details about the yacht are available.

It will reportedly be called the "White Pearl" and have a "soaring, open atrium that will rise three stories"; a massive swimming pool; and a "design scheme that, in some sections, will be reminiscent of 'Pirates of the Caribbean.'"

Melnichenko, whose net worth is estimated at $8.4 billion, founded the fertilizer producer EuroChem, the coal producer Suek, the power generator SGK, and the pipe exporter TMK along with Sergei Popov.