Mondstadt (German: Mondstadt "Moon City") is one of the seven nations in Teyvat, and the first in which the Traveler starts to look for their lost sibling. It is the city-state that worships Barbatos, the Anemo Archon.
Ever since the beginning, Mondstadt has celebrated a festival called the Ludi Harpastum every year, with 15 days of games for the children to enjoy.

Blanche says that the city of Mondstadt is known for their wines.