Marco Polo Venetian traveller and merchant. Scene from his "Book of Marvels." early 15th century manuscript illustrated by Masters Boucicaut and...
stunning sunrise scene aerial view of the famous dubrovnik medieval old town with its marina and fortified walls by the adriatic sea in croatia - 防衛牆 個照片及圖片檔
View of the York Minster towering over the historic city of York from the city walls, Yorkshire, United Kingdom.城市, 約克大教堂, 建築物外觀
tallinn's old town with st olaf's church's spire towering above it, estonia - 防衛牆 個照片及圖片檔塔林, 愛沙尼亞, 春天
View of a massive piece of German coastal artillery in a concrete casement on the Atlantic Wall, France, early 1940s.
northern part of visby ring wall with two towers surrounded by paths and park environment - 防衛牆 個照片及圖片檔哥德蘭島, 夏天
Siege ramp, woodcut from De re militari, by Roberto Valturio, printed by Christian Wechel, Paris, 1532.
Siege crane with gangplank, woodcut from De re militari, by Roberto Valturio, printed by Christian Wechel, Paris, 1532.
