illuminated lit lights stalagmites stalactites limestone show cave cavern grutas da moeda in batalha leiria portugal

ancient attraction cave cavern ciencia coin colorful da de destination fatima formations geology gerais grotto gruta inside landscape light lighted limestone maquine minas moeda mountain natural nature old popular portugal rock sightseeing stalactite stalagmites stone structure texture tourism tourist travel wall water illuminated batalha europe leiria