Example 4. The Goreme Region, Turkey. 
This unique region of Turkey owes it's form to the volcanic origin of its rocks. The effect of rain and wind over the centuries have 
created extraordinarily shaped valleys and other natural features. There are however many important built forms in the region. The 
above illustrations show parts of the churches of Elmali and St Barbara. These unique churches are hewn out of the natural rock. 
The illustrations show parts of the ceilings of these two churches, original at 1:20 scale. This work was carried out by the Laboratory 
of Photogrammetry of the Middle East Technical University, Ankara, Turkey. 
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