wordpress.com blog to show geotagmap

I found that one could geotag ones posts. But then read that it was invisible for users. So I want to have a page (or a post) which shows all the geotags made in the posts.

Like this (blogger) https://www.lunchimalmo.se/p/lunchkartan.html

I could do in if I had WP on my own server with plugins and the likes, but I wonder: is it possible with the free version of the WP-blog?