las medulas, spain

ancient antique archaeological archaeology architecture beauty bierzo blue building castilla cavern civilization color construction contrast countryside culture desert empire ethereal europe excavation forest geology gold heritage high hill historic history industrial industry landmark landscape las leon medulas metal mine mineral monument mountain mountains natural nature old open orange ore outdoor outdoors outlook panoramic park patrimony peak ponferrada precious red rock roman romans rome ruin rural sand santiago scene season spain tourism tourist travel tree trekking tunnel unesco vacations vintage world