The Hypogeum of Hal-Saflieni consists of 3 underground levels & is truly one of the ancient wonders of the world. www.visitmalta.com/hal-saflieni-hypogeum-map, http://whc.unesco.org/en/list/130, www.ancient-wisdom.co.uk/maltahypogeum.htm, www.maltassist.co.uk/hypogeum.htm
Malta is another reminder of the ancient lost or hidden knowledge on earth. www.heritagemalta.org/sites/sites.html
This is another fine series of reports from LM Howe on C2CAM. www.earthfiles.com, http://twitter.com/#!/c2cam
More LMH reports.
http://c-shapes.blogspot.ca/2012/04/lmh-ws.html,
http://c-shapes.blogspot.ca/2012/05/machu-picchu.html,
http://c-shapes.blogspot.ca/2012/08/lmh.html