WorldMap & MongoDB

(I use Google Translator): I’ve use Grafana only 3-4 days. I chose MongoDB for myself. Unfortunately, today I found out that I can not work with WorldMap. If I understood correctly: MongoDB cannot become a source of data for mapping. I tried PostgreSQL, but it turned out to be difficult for me. Is there any way out? I need to display on my Dashboard a map of my city with markers at certain points.