According to Zephaniah 1:5, where did people bow to worship the host of heaven?

Answer: On the rooftops

God would cut off the remnant of Baal and those who bowed on the rooftops to worship the host of heaven.

““I will stretch out My hand against Judah and against all who dwell in Jerusalem. I will cut off from this place every remnant of Baal, the names of the idolatrous and pagan priests— those who bow on the rooftops to worship the host of heaven, those who bow down and swear by the LORD but also swear by Milcom,”— Zephaniah 1:4-5 (BSB)