(Source: https://ok.ru/fotopute/topic/66413892091961)

At the end of the XIX century, thick forests on the territory of the Russian Island were cut down to the root, inconspicuous batteries appeared everywhere with the majority of communications located underground. In the same place hundreds of soldiers could live. The fortress was built for the defense of Vladivostok, separated from the Russian Island by the Eastern Bosporus Strait.

The Vladivostok fortress was formidable and, according to Grand Duke Sergey Mikhailovich Romanov, perfectly prepared. The fortifications on the Russian Island are covered with a multi-centimeter layer of plaster, which for the most part has not even cracked in a hundred years. They waited for the Japanese, and the Bolsheviks came, so that the underground fortress remained unfinished.

In the Soviet era, new fortresses appeared. Now only the ship's triple guns on the platform-turn signals, stretching to the ground on several floors, were sticking out. The former battery commander (and now - the guide) complains that today the wrong soldier has gone. Previously, a multitone hulk was deployed manually, and now they have not got the guts. Recently, the finally "demobilized" Russian island has become thicker with forests than before and is preparing for a business career. Between the island and the mainland, the cable-stayed bridge with the longest span in the world (1104 meters) was erected.