Under the earth's surface lie countless surprising discoveries, revealing hidden aspects of our past and the natural world. Today we are going to talk about some of the most surprising discoveries that people made underground that left everyone speechless. We’ve got the magnificent discovery of the secret Civil War treasure, Iron Age gold in a farmer's field, as well as the Ophel treasure, gold artifacts found at Temple Mount. Make sure to stay until the end of the video and take a look at number one, because the first underground discovery is truly shocking.