Zaporizhian Sich was a fortress serving to protect the territory from the Tatars intrusions. It had cannons that were protecting the river pass. In the current reconstruction there are a few cannons to reproduce the feeling of that period.
The image was created merging 2 photos with different exposure. I used Photoshop function Align Layers to position images (that were uploaded as layers) and then I hid the parts of image using Masks. This technique can be used instead of HDR. Sometime this produces better results.