A 510-foot-long (155 metre), $100 million (A$135 million) Noah's ark attraction built by Christians who say the biblical story really happened is ready to open in Kentucky this week.
Since its announcement in 2010, the ark project has rankled opponents who say the attraction will be detrimental to science education and shouldn't have won state tax incentives.
But Australian Ken Ham, president of Answers in Genesis, the ministry that built the ark, said he believed it would be one of the 'greatest Christian outreaches of this era in history.'
Ham said the massive ark, based on the tale of a man who got an end-of-the-world warning from God about a massive flood, will stand as proof that the stories of the Bible are true.
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The group invited media and thousands of supporters for a preview on Tuesday, the first glimpse inside the giant, mostly wood structure.
'People are going to come from all over the world,' Ham said to thousands of people in front of the ark.
The ark will open to the public Thursday and Ham's group has estimated it will draw 2 million visitors in its first year, putting it on par with some of the big-ticket attractions in nearby Cincinnati.
Australian Ken Ham (at, president of Answers in Genesis, the ministry that built the ark, said he believed it would be one of the 'greatest Christian outreaches of this era in history.