likalinea: Fyrkat, a former Viking ring castle dating back to 980 AD, near the town of Hobro, Denmark. Photo Ted Spiegel. April 1970via @geoarchive_https://www.instagram.com/likalinea/
from: https://uozi.tumblr.com/post/699811964761833472
from: https://uozi.tumblr.com/post/699811964761833472