Sobre este lugar
Stone plaque in the Lonja of the Royal Monastery commemorating the astronomical meridian line drawn in 1905 by D. Luis Ceballos Medrano, a historical reference for the geodesy of the Royal Site of El Escorial.




Stone plaque in the Lonja of the Royal Monastery commemorating the astronomical meridian line drawn in 1905 by D. Luis Ceballos Medrano, a historical reference for the geodesy of the Royal Site of El Escorial.