Estereográfica - Tierra de Topos - Theodolitos

http://notlion.github.com/streetview-stereographic/#o=0.688,0.025,0.058,0.723&z=1.574&mz=18&p=42.22642,-8.73469

http://tierradetopos.blogspot.com/

http://commons.wikimedia.org/wiki/Category:Theodolites