I would like to help with your list.

I need to go back and watch some of these episodes again, because I am actually trying to finish up my site this summer. Going through the next series of season one episodes, this is what I could come up:
THE GOLDEN CRICKET CAGE OF KHAN:
-- The Throne Room (encountered)
-- The Heart Room (encountered)
-- ?
ELIZABETH I'S GOLDEN SHIP:
-- The Cave of Sighs (encountered)
-- The Heart Room (encountered)
-- The Room of the Golden Idols (encountered)
JOHN SUTTER AND THE MAP TO THE LOST GOLD MINE
-- The Cave of Sighs (encountered)
-- The Throne Room (encountered)
-- The Room of the Golden Idols (encountered)
THE STAR OF SULTAN SALADIN
-- The Tomb of the Ancient Kings (encountered)
-- The Cave of Sighs (you can see him when Leah exits the temple)
-- The Heart Room? (The Heart Room would've probably been a deadend for Leah, so I assume a guard was in there)
THE KEYS TO THE ALHAMBRA
-- The Throne Room (encountered)
-- The Tomb of the Ancient Kings (encountered)
-- ? (I assume it would be a room on the top level of the temple, maybe the Shrine?)
THE HELMET OF GENGHIS KHAN
-- The Cave of Sighs (encountered)
-- The Shrine of the Silver Monkey (encountered)
-- ? (Perhaps the Throne Room? There is usually a temple guard there when the contestants take the bottom route)
THE TROJAN HORSESHOE
-- The Cave of Sighs (encountered)
-- The Shrine of the Silver Monkey (encountered)
-- The Spider's Lair (As the Green Monkey boy exits the temple, you can see the headdress of the temple guard. I guess this room could've only be accessed by pressing down an idol)
THE PENDANT OF KAMEHAMEHA
-- The Throne Room (encountered)
-- The Heart Room (encountered)
-- The Dungeon (encountered)