That is what Turkish and Chinese explorers are claiming. They believe enough that they have found it that they are applying UNESCO World Heritage status to protect the site so a major archeological dig can be had. We may be able to figure out if it was circular soon.
"THE remains of Noah's Ark have been discovered 13,000ft up a Turkish mountain, it has been claimed.
A group of Chinese and Turkish evangelical explorers say they have found wooden remains on Mount Ararat in eastern Turkey.
They claim carbon dating proves the relics are 4,800 years old — around the same time the ark was said to be afloat."