Pavlov's House was an apartment building converted into a fortified position, which Red Army defenders held for around 60 days against the Wehrmacht offensive during the Battle of Stalingrad. The siege lasted from 27 September to 25 November 1942 and eventually the Red Army managed to relieve it from the siege.
It gained its popular name from Sergeant Yakov Pavlov, who commanded the platoon that seized the building and defended it during the long battle.
The importance of the building has been contested. The fame of the building might be due to the fact that it was not at the center of the October fighting, which had shifted to the north of Stalingrad.
Wikipedia https://en.wikipedia.org/wiki/Pavlov's_House
Coordinates 48°42'57.764" N 44°31'53.302" E