On
http://www.aena.es/csee/ccurl/LE_ENR_5_4_en.pdf, there is a list of airtraffic obstacles in Spain available. According to this list, at 38°04'36"N 00°39'49"W, there should stand a 370 metres tall guyed mast, which would be the second tallest structure in European Union today. However, when checking the site by Wikimapia, there is nothing, but at 38°4'19"N -0°39'53"E, there is a guyed mast, called "Torreta de Guardamar".
I do not know it, but is it really 370 metres tall?