Yep, as you might’ve guessed. It’s panorama. A panorama shot from Riga. It shows the long Vansu Tilts (Vansu Bridge) that crosses the river Daugava. And the bridge is not short. It’s 595 meters long. It didn’t really look that long when you were there. Only later Wikipedia revealed that secret.
Indeed the sunset turned out to be colorful. And that was the only evening we were going to spend there. So were were lucky. Set up the broken tripod, take 20 photos, combine them and voila!