Aerial top-down photo of Oosterscheldekering four pillars the largest of the 13 ambitious Delta Works series of dams designed to protect the Netherlands from flooding from the North Sea_站酷海洛_正版图片_视频_字体_音乐素材交易平台

Aerial top-down photo of Oosterscheldekering four pillars the largest of the 13 ambitious Delta Works series of dams designed to protect the Netherlands from flooding from the North Sea