Discover Željava Airbase on a concise 2-hour tour that begins at an abandoned Douglas C-47 Skytrain, a remarkable piece of aviation history open for exploration. Continue across the expansive runways, imagining the feeling of takeoff as views open toward the plane-shaped entrance in the hillside. The experience then leads into the base's dark tunnels for a 3-kilometer walk with flashlight guidance, revealing the construction, operational days, destruction, and personal stories connected to this secret underground military complex.