Underground structures

Underground structures have been an integral part of human history, serving as hidden passageways, places of refuge, and even entire cities. Today, they continue to play a critical role in modern society, serving as transportation networks, storage facilities, and secure locations for sensitive activities. From tunnels and subways to caves and bunkers, underground structures offer a unique blend of functionality, safety, and secrecy. In this article, we will explore the fascinating world of underground structures, delving into their history, design, and construction, as well as their advantages, disadvantages, and future prospects.

کلیدواژه ها:

Underground structures ، Tunnels ، Bunkers ، Underground