Interesting quotes about Noah's Ark from 2,000 years ago:
Ancient references to Noah's Ark, cited by the 1st century Jewish historian Josephus:
“However, the Armenians call this place (the resting place of Noah’s Ark) ‘The Place of Descent,’ for the ark being saved in that place, its remains are shewn there by the inhabitants to this day
“Now all the writers of barbarian histories make mention of this flood and of this ark; among whom is Berosus the Chaldean; for when he is describing the circumstances of the flood, he goes on thus: ‘It is said there is still some part of the ship in Armenia, at the mountain of the Cordyeans; and that some people carry off pieces of the bitumen, which they take away and use chiefly as amulets for the averting of mischiefs.’ Hieronymus the Egyptian, also, who wrote the Phoenician Antiquities, and Mnaseas, and a great many more, make mention of the same. Nay, Nicolaus of Damascus, in his ninety-sixth book, hath a particular relation about them, where he speaks thus: ‘There is a great mountain in Armenia, over Minyas, called Baris, upon which it is reported that many who fled at the time of the Deluge were saved; and that one who was carried in an ark came on shore upon the top of it; and that the remains of the timber were a great while preserved. This might be the man about whom Moses, the legislator of the Jews wrote.’”
Interesting quote from about 180 AD:
"The remains of the Ark (of Noah) can be seen to this day in the Arabian mountains."
- Theophilus. Theophilus was the Bishop of Antioch. Source: Dictionary of Early Christian Beliefs, by David Bercot, referencing the Ante-Nicene Fathers, Volume 2, pg. 117.
https://books.google.com/books?id=nFlVEAAAQBAJ&pg=PT81&lpg=PT81&dq=The+remains+of+the+Ark+(of+Noah)+can+be+seen+to+this+day+in+the+Arabian+mountains."+-+Theophilus&source=bl&ots=IqhwUDDBpR&sig=ACfU3U2kt_K01oMXpSsx8Ml0De5QM9gjCQ&hl=en&sa=X&ved=2ahUKEwjtyP7Q0rv1AhXiEEQIHXnlCYAQ6AF6BAgCEAM#v=onepage&q=The remains of the Ark (of Noah) can be seen to this day in the Arabian mountains." - Theophilus&f=false
So, the Ark was visible to people 2,000 years ago.