The Indiana Army Ammunitions Plant consists of over 12,000 acres of abandoned military buildings. Believed to be the single largest abandonment in the United States, this former installation contains well over 1000 buildings. Built in 1942 to support the US efforts in WWII, the base continued to produce through the Korean and Vietnam Wars. All of the gates and doors were closed and locked at the end of the Cold War, prior to that point the base had been kept on "Standby Status," constantly ready to produce should war between the US and USSR have ever broken out.