After the trip, I want to post the photos of the scenic spots on the map. How to make them?

You can use ps or Indesign software. For example, I made this map of xishuangbanna tourism, and every place I have been added a "villain".

For example, ps: You can drag every photo into the map with the map as the background, and every photo is a new layer.

Then resize the picture and move it to a suitable position.

I hope my answer can help you ~