Edward Leedskalnin: Coral Castle

Edward_Leedskalnin died in 1951, but left a fascinating legacy of stone & geometry in the form of, Coral_Castle. http://www.atlasobscura.com/places/ed-leedskalnins-coral-castle,
http://www.bibliotecapleyades.net/ciencia/ciencia_modernmegalithsus02a.htm

http://coralcastle.com, http://www.crystalinks.com/coralcastle.html, http://rense.com/general39/coral.htm, http://www.labyrinthina.com/coral.htm, http://paranormal.about.com/od/moremadscience/a/coral-castle-secrets.htm, http://www.code144.com/2012/12/the-superhuman-abilities-of-edward-leedskalnin

There is another interesting construction in France created by, Ferdinand_Cheval.

http://jf-databits.blogspot.ca/2012/07/the-miami-circle-at-brickell-point.html