The Golden Altar in the Holy Place

The rabbis almost universally say that the golden altar is outside of the curtain in the in the holy place. However, like when I read this, it feels like it's the opposite. And then to complicate matters, if I'm remembering correctly, Hebrews specifically says it's in the holy of holies. So oh boy, this is a minor thing. But I wanted to give you an alley hoop in case there's something big here.