roman bridge in the alardos gorge in madrigal de la vera, caceres, extremadura, spain, europe.

roman bridge alardos gorge madrigal de la vera caceres extremadura spain europe construction travel picturesque culture estremadura landmark environment view old europa mountain chain landscape ancient stone architecture nature arch hiking blue river building history historic sky water mediaeval ruin rural tree spanish trekking route rock tour tourism vale touristic growing single heaven lovely panorama panoramic stream