by lokster
3D model of the Baba Vida fortress in Vidin, Bulgaria - https://en.wikipedia.org/wiki/Baba_Vida.
The model was created by flying in circle with a drone around the fortress, and recording a video.
Then I generated the 3D model from the frames using photogrammetry software.
Video of the 3d printed model: https://www.youtube.com/watch?v=Q-It6kl703I
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More cool stuff can be found on http://lokspace.eu/