The Cold War is the conventional name for the period of political and military competition between two blocs led by the US and the USSR. This rivalry was mainly ideological and economic, intensified by the conventional and nuclear arms race.
Here's a 3-minute video by Great Big Story about the National Audio-Visual Conservation Center in Culpeper, Virginia, a nuclear bunker that was once used by the Feds to house $4 billion worth of gold. Its goal these days is to preserve the nation's history of film.
In October of 2012, LA-based photographer Sabine Pearlman found herself ensconced in a Swiss WWII bunker photographing 900 different "specimens" of cross sectioned ammunition. Her resulting photo series, AMMO, shows the beauty and craftsmanship that went into creating these destructive little pieces of engineering.