Took two panorama photos at the Ronald Reagan Presidential Library and Museum. The above photo was taken with the iPhone using the built-in panorama feature. The advantage was that this was easy to take, but the photo contains noticeable distortion and there were exposure issues from the wide dynamic range.
The second photo was stitched together from multiple photos taken by camera. The ceiling is not curved and the photo is better exposed particularly towards the right side by the large window.