Interesting ghosting effect I discovered to the right, alongside the monument. This was only visible after I adjusted the “Levels” in Photoshop. I guess it was a bounce reflection from the IR filter to the lens due to the long exposure (2.0 Sec).
Picture was taken in color, converted to LAB color space, deleted the A and B channels, adjusted Levels, and used “Shadow/Highlight” adjustment to fine tune the midtones and final contrast.