New Revised Standard Version
The altars on the roof of the upper chamber of Ahaz, which the kings of Judah had made, and the altars that Manasseh had made in the two courts of the house of the LORD, he pulled down from there and broke in pieces, and threw the rubble into the Wadi Kidron.

Contemporary English Version
Some of the kings of Judah, especially Manasseh, had built altars in the two courts of the temple and in the room that Ahaz had built on the palace roof. Josiah had these altars torn down and smashed to pieces, and he had the pieces thrown into Kidron Valley, just outside Jerusalem.

New American Bible
He also demolished the altars made by the kings of Judah on the roof (the roof terrace of Ahaz), and the altars made by Manasseh in the two courts of the LORD’s house. He pulverized them and threw the dust into the Wadi Kidron.

Douay-Rheims Bible
And the altars that were upon the top of the upper chamber of Achaz, which the kings of Juda had made, and the altars which Manasses had made in the two courts of the temple of the Lord, the king broke down: and he ran from thence, and cast the ashes of them into the torrent Cedron.

And the altars that were upon the top of the upper chamber of Achaz, which the kings of Juda had made, and the altars which Manasses had made in the two courts of the temple of the Lord, the king broke down: and he ran from thence, and cast the ashes of them into the torrent Cedron.

on the top.

Deuteronomy 22:8 When thou buildest a new house, thou shalt make a battlement to the roof round about: lest blood be shed in thy house, and thou be guilty, if any one slip, and fall down headlong.

Jeremiah 19:13 And the houses of Jerusalem, and the houses of the kings of Juda shall be unclean as the place of Topheth: all the houses upon whose roofs they have sacrificed to all the host of heaven, and have poured out drink offerings to strange gods.

Zephaniah 1:5 And them that worship the host of heaven upon the tops of houses, and them that adore, and swear by the Lord, and swear by Melchom.

which Manasseh.

2 Kings 21:5,21,22 And he built altars for all the host of heaven, in the two courts of the temple of the Lord. . . .

2 Chronicles 33:5,15 And he built them for all the host of heaven in the two courts of the house of the Lord. . . .

brake them down from thence.

2 Kings 23:6 And he caused the grove to be carried out from the house of the Lord, without Jerusalem, to the valley of Cedron, and he burnt it there, and reduced it to dust, and cast the dust upon the graves of the common people.