mountaintop memorial site with a Christian cross, a Bulgarian flag, and a gray stone plaque

mountaintop memorial site with a Christian cross, a Bulgarian flag, and a gray stone plaque. The flag is tattered and blowing in the wind. The plaque is inscribed with text. The ground is rocky and covered in sparse vegetation. In the background, there are rolling hills and a cloudy sky. In the first few seconds of the video, some parts of a bicycle and a backpack can be seen in the lower right corner of the shot. The camera pans across the memorial.