![Abandoned fortifications](https://a4.pbase.com/g6/88/474988/3/75445262.1WAXGZ6Y.jpg) Abandoned fortifications
by Jakob Ehrensvärd
| ![Scotland's “Secret” Bunker](https://a4.pbase.com/g1/87/142487/3/131066497.CpKgUkJI.jpg) Scotland's “Secret” Bunker
by Paul
| ![Kelly Butte Civil Defense Center](https://a4.pbase.com/g13/56/781656/3/174702231.f27244bd.JPEG) Kelly Butte Civil Defense Center
by Jeff B.
| ![The Falkenhagen Complex](https://a4.pbase.com/g6/88/474988/3/80191222.R7WaR6I7.jpg) The Falkenhagen Complex
by Jakob Ehrensvärd
| ![The Malborough Bunker](https://a4.pbase.com/g4/49/898249/3/143196871.SqU9bCxW.jpg) The Malborough Bunker
by crustacean
|
![Bunker by Night 2013](https://a4.pbase.com/g9/70/813670/3/150400755.xaQhME76.jpg) Bunker by Night 2013
by Søren Brøndum Christensen
| ![Bunker by Night 2014](https://a4.pbase.com/g9/70/813670/3/155791517.KDlXC5u2.jpg) Bunker by Night 2014
by Søren Brøndum Christensen
| ![Relic of The Cold War](https://a4.pbase.com/g1/73/300373/3/106983319.k7dpmpiV.jpg) Relic of The Cold War
by Eldar Kadymov
| ![07/21/2016 6th Alarm Boston MA](https://a4.pbase.com/g9/95/747895/3/163745953.6FdjpmZE.jpg) 07/21/2016 6th Alarm Boston MA
by NEFirePhoto.com: Fire Photography of Pat Travers
| ![Bunker Hill](https://a4.pbase.com/g4/81/486481/3/145587368.iudeqgs7.jpg) Bunker Hill
by Robert Kitay
|