Russian Ballet is a form of classical ballet that originated in Russia during the 19th century. It is known for its highly technical and athletic style, as well as its use of mime and dramatic expression. Two of the most famous Russian ballet companies are the Kirov Ballet (formerly known as the Imperial Russian Ballet) and the Bolshoi Ballet. The Kirov Ballet is based in St. Petersburg and is renowned for its classical technique and repertoire. The Bolshoi Ballet is based in Moscow and is known for its grandiose productions and innovative choreography. Both companies have toured extensively throughout the world and continue to be major influences in the world of ballet.