In reading about the German invasions of France in 1914 and Russia in 1941, I often come across anecdotal assertions of the Germans seeing the Eiffel Tower in the distance as they got close to Paris, or, in the case of WWII, the advance German reconnaissance groups seeing "the golden domes of the Kremlin" off in the distance in Moscow.

Is there any legitimate, scholarly evidence of these events occurring? Like a soldier's diary, or memoirs, or something?