Finally I’ve merged the panorama, photos to which I made in Lisbon visiting the Castelo de Sao-Joseph. I had to make 19 photos to get whole view from the wall of the castle. And there was a problem to merge those images together as the result panorama was going to be too large. But this trouble was solved using PhotoShop. It has a nice feature of photo merging. It is automatic and needs only the input set of images to work with.
So, the result panorama came with 24,000px width! Here is a smaller copy for your review.