These were created with Hugin's panorama photo stitcher. I take dozens of photos from one spot and it merges them together automagically. Click on any of them to download the full size version.
Many of my photos are in galleries at tom.je. Those come and go randomly, so save anything you want to keep for later.
You can also try my Twitter feed at @tombrossman, where I post some interesting photos. Images posted here and at tom.je are released to the public domain, you can download and use them however you like.