Interesting maps

Openstreetmap
OpenStreetMap is the free wiki world map.
https://www.openstreetmap.org/
Why use OpenStreetMap instead of Google Maps?
Customization: OSM is highly customizable, allowing developers to tailor the map to their specific needs, while Google Maps and Apple Maps have more limited customization options.
Data ownership: OSM is built and maintained by a community of contributors, which means the data is freely available and can be edited.

Cellular network
https://www.cellmapper.net/
CellMapper is a crowd-sourced cellular tower and coverage mapping service. CellMapper is a useful app for locating 2G/3G/4G/5G base stations. The application measures the signal strength and other network data collected by end users and uses the data collected to locate network base stations and their coverage. The application is currently supported on Android and Windows 10 Mobile devices. CellMapper servers calculate the data that users have sent and creates graphical representation of it in the map delivered by Google Maps, which can be browsed directly from the Android App or CellMapper webpage. T

Lightning
https://www.blitzortung.org/fi/live_lightning_maps.php
Blitzortung.org provides lightning and thunderstorm information in real-time on maps for very many countries around the world. Blitzortung is an informal, non-commercial group of citizen scientists supported by professional scientists. Blitzortung.org is a world-wide non-commercial low-cost community-based Time-of-Arrival lightning detection and lightning location network.

Cyber Attacks
https://www.epanorama.net/newepa/2022/03/10/cyber-attack-maps/
Cyber attacks happen all the time. There are many real-time cyber attack maps on-line. This page has links to many of them.

More maps links:
These World Maps Will Blow Your Mind
40 maps that explain the world
Brilliant Maps
40 Maps They Didn’t Teach You In School
22 maps and charts that will surprise you
30 Interesting Maps To Broaden Your Understanding Of The World
20 Interesting Maps That Might Make You See Things From A Different Angle
Top 20 most amazing and beautiful maps you’ve ever seen
Discover 33 Unique World Maps That You Won’t Find In Any Textbook