Sarov

Sarov (Russian: Саро́в) is a closed town in Nizhny Novgorod Oblast, Russia. Until 1995 it was known as Kremlyov (Кремлёв), while from 1946 to 1991 it was called Arzamas-16 (Арзама́с-16). The town is closed as it is the Russian center for nuclear research. Population: 92,073 (2010 Census preliminary results); 87,652 (2002 Census).