Željava Air Base - Europe’s Largest Abandoned Underground Military Airbase
- Distance
- 4.05mi
- Elevation +
- 79f
- TrailRank
- 46 4.67
Situated in the west of Bosnia on the border with Croatia, Objekat 505, as it was officially known, was the largest underground airport in the Balkans. The primary purpose of the Objekat 505 was to house a long-range rad...