Iceland man-made cave was dug in the 10th c.
Updated: 2022-05-31 03:48:33
A man-made cave near Oddi in South Iceland is much older and larger than archaeologists initially realized. An analysis of the layers of volcanic tephra revealed that the caves were created in the middle of the 10th century, not in the early 12th century as previously believed. The first of the caves was discovered in […]