But it is also the location of a secret bunker that can hold the entire US ... The grass grew back, trees took root, and in time there was little sign that it had ever been a construction site.

Both the Soviet Union and the United States constructed extensive nuclear arsenals and with that, built secret underground bunkers for protection from opposing strikes. It was at that time that ...

But the structures will be connected by a secret tunnel that leads to a shelter behind a metal door filled with concrete that can withstand blasts. There will be living spaces in the bunker ...

An curved arrow pointing right. In the event of a nuclear attack, the US government has secret bunkers hidden around the country to take shelter in. Only critical government personnel would be ...

An curved arrow pointing right. Diagrams obtained by Insider show an underground doomsday bunker connected to Vladimir Putin's palace on the Black Sea. More from Decoded Diagrams obtained by ...