All castles in Heroes 3.

I had an idea to compare the power of castles and creature dwellings: calculate the "Peasant Yield" and "Peasant Kill" parameters. Peasant Yield is the number (range min - max) of peasants killed by one hit of the weekly damage output of a castle or dwelling, with the hero's attack and defense at zero. Peasant Kill is the number of peasants that can kill the same weekly damage output in one hit, under the same conditions. In this case, it will be possible to easily and unambiguously quantitatively compare castles with each other in terms of combat power (without magic). Although, of course, not entirely - it does not take into account double attacks per turn, innate magic of creatures, morality, retaliatory attacks, multi-headed attacks, etc.
But at least as a first approximation.