One of the most luxurious yachts ever built is going on the auction block with an estimated price of more than $300 million. The super yacht Nirvana has six decks and spans 290 feet. It was built in 2012 by South African construction gurus Oceanco, and designed by Australian Sam Sorgiovanni.

The yacht boasts a private sunbathing area with Jacuzzi, a covered dining area, a fully equipped gymnasium and a spa. The are six cabins: a master suite, a VIP suite and four double cabins. All cabins have floor-to-ceiling windows.

Other highlight include a 3D cinema, a silver engraved elevator, and a garage for cars and ski boats.

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