Čistá Čtvrť ("pure district"), also Čistá District and Prague West (as used in the "location" identifier for emails in the in-game database), is one of the district in the section of Prague north of the railroad. The district consists of Hlavní ("main") street, which includes a section that passes under the Pedestrian Bridge and runs from Monument Station to the Vltava River, the entire area west of this section of Hlavní, and a small area to the east of Monument Station called Růžičkovo Náměstí.