Kostera
 Kostera [kɔsˈtɛra] is a village in the administrative district of Gmina Gnojno within Busko County Świętokrzyskie Voivodeship in south-central Poland. It lies approximately 8 kilometres (5 mi) south-west of Gnojno 11 km (7 mi) north-east of Busko-Zdrój and 40 km (25 mi) south of the regional capital Kielce.