Australian billionaire Clive Palmer says he is building a full-size
, he calls it Titanic II. He's not saying how much he'll spend, but based on the size and amenities, CNBC Wealth Editor Robert Frank estimates it has to cost at least $600 million to build such an enormous ship. Our cameras were at the press conference when Palmer announced he's had 16 people offer to pay between $750,000 and a million dollars to get on board the maiden voyage. And for the lucky few who set sail on Titanic II, Palmer said the ticket price includes period costumes.