German's final, final assault on the capital of the USSR in November 1941. 

Map 1: The Battle of Moscow, November 1941.

Map 20: The bigger picture. 

Source: U.S. Army archives. 

Soviets fighting back during "offensive weather":

Rasputitsa: 

Defense of Moscow: 

Women militia training in Moscow, fall 1941:

New T-34 tanks roll off the assembly line, 1941

Soviet air power: 

The Yakovlev Yak fighter

Ilyushin Il-2 in flight near Moscow, December 1941

Winter 

Abandoned German vehicles in the snow, on the highway from Volokolamsk to Moscow, December 1941:

Wrecked Panzer III, December 1941: