About 210 photos in 4K resolution from the 2014 Southern California Area Historical Modelers show near Anaheim. Even if you have 1080p monitors you should notice a compression improvement by watching the 4K version. Once you start the video, you can select that via the Gear Icon in the lower left of the YouTube tool bar in case you didn't know. You can also expand the video to full screen via the Square Icon on the lower left as well. Enjoy!