Syria - Hang 'Em High
Shoot down 7 incense burners.
These are all found inside the main tomb. When you first enter, turn to your left to see this by the entrance.
Turn around to spot another hanging above a walkway.
After raising the water, swim to the back left corner and look up.
Turn around, and you'll see this one hanging in the central tower.
Check the alcoves in the very back of the room to find this.
Hanging from an arch in the back right corner of the room.
This one hangs above a walkway in the upper part of the tomb. You'll see it when you start crossing the platforms by the middle tower.