# Trams on route 21 in the Upper Silesian urban area
**Wikidata**: [Q108046550](https://www.wikidata.org/wiki/Q108046550)  
**Source**: https://4ort.xyz/entity/trams-on-route-21-in-the-upper-silesian-urban-area


## References

1. [Source](https://rj.metropoliaztm.pl/media/uploads/tramwaje_29.07.2023_v1.png)