Can anyone on this list help me?
I was wondering if anyone knows of any type of structure (fortress,
etc.) built atop a cave or cave-like feature (such as a hollow mound?) that
was used or may have been used during the 6th century, though not
necessarily constructed at that time originally? If so, is it or could it be
possible to have some type of entry from the feature through its ceiling,
such as the climbing of stairs (though not stairs per se), to the structure
Thanks for your help.
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