This is Putin's secret place, where even the Americans couldn't break.

In this Russian city no one has managed to set foot, waking up numerous speculations about what might be in it. The mysterious place is especially interesting to Americans.

Mezhgorye is a city in Russia, which for years is a great mystery and is therefore closed to visitors. Here live people who are employed at the mysterious Yamantau peak at an altitude of 1,640m in Urals.

This city was founded in 1979, and the circumstances that followed in the past three decades have brought it under the shadow of mysteriousness.

Satellite images show that there is a nuclear facility or bunker in this underground country. It was opened during Russian President Boris Jelcen's mandate.

However, in the questions posed by the United States, the Russians answered differently. Among the many explanations are that this was a warehouse for food, an object for human protection, but also an excuse that this is a bunker for guidance in the event of nuclear war.