This category is for places. What a surprise. It could be a continent, country, county, barony, lording, city, town, lake, etc.
For stars, planets, comets, asteroids use Category:Heavenly Bodies
“The Springfield Effect is the name given to an alleged phenomenon by which every place named...The Springfield Effect
“Janus County, Texas is a fictional name for a real county in central Texas in the United States...Janus County, Texas