# U1

> metro line in Vienna

**Wikidata**: [Q663755](https://www.wikidata.org/wiki/Q663755)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/U1_(Vienna_U-Bahn))  
**Source**: https://4ort.xyz/entity/u1-q663755


## References

1. Freebase Data Dumps. 2013
2. BabelNet