ancient stone bridge and medieval bridge of coja reflected in the river alva, arganil portugal

bridge river waterway water reservoir canal reflection tree transport arch ruins channel stream pond lake landmark tourism wall ancient stone medieval coja reflected alva arganil portugal herbs background rustic scenic outdoor heritage arched ancient old historical monument roman arches banks pebbles rock nature water summer structure construction architecture tourism building green history town historic vacation destination landmark reflected travel landscape grass herbs stone mirrored reflection countryside village stream mata alva river bridge medieval arganil coja portuguese portugal europe