https://www.ads-software.com/extend/plugins/panoramio-images/installation/
and…
HOW TO
To display the widget, add a custom field to a post called “panoramio”. The value of panoramio should be the coordinate to the area that you want to display pictures from. The value should be formatted like this: X:Y
It is also possible to supply the script with two coordinates, for a more precise area. Use this format: minx:miny:maxx:maxy
All coordinates should be given in the decimal form of latitude/longitude. I recommend using https://mapki.com/getLonLat.php.”