Bunkers sound library features room tones and ambients recorded inside old World War II shelters. 23 files with total length of 57 minutes were recorded with Sony PCM-M10 and Sennheiser MKH 8040 plugged into Sound Devices 702 recorder in ORTF configuration. Ambients were captured in small rooms deep inside bunkers, in hallways, inside old rusty water pipes and outside, between bunkers. It includes room tones with water dripping from ceilings, small pieces of wall falling on the floor and wind getting through destroyed walls. The whole complex is located in Poland and it’s called Wolf’s Lair. You can read about the history of this place here.