Toys ID please if this is the right forum mini monsters and 2 buildings

[twobowerbirds]

I came across these toys recently. I can find no manufacturer's name on the two buildings or figures, can anyone help? Apologies if wrong forums

[twobowerbirds]

Found MEG on a couple and a building, perhaps they are Mighty Max toys

[judydavid01]

Maybe "Skeletor's" castle from Masters of the Unjverse (He- Man) series in 1980s but just guessing