The vast majority of the images on this site are hosted on Flickr. As such, I expect them to not load properly when the company undergoes scheduled maintenance starting late afternoon on Wednesday, May 22, 2019. With hope, their technological changes and upgrades will be all done and dusted in short order.
The photo above is not hosted on Flickr so, ironically, it will not be out of service and (theoretically) visible to you when Flickr takes its system offline for data migration. This image was snapped on a visit to Arizona a few years ago.