In My Very Strong Opinion, below is the cave that holds Israel’s Solomonic Temple Treasures including The Ark of The Covenant.
BTW, the gravel that you see above was tested and found to be man-made material.
For more information on this subject, head on over to “The Copper Scroll Project”
BTW, what a coincidence? Read what Jeremiah the Prophet wrote.
“2 Maccabees 2:5 Jeremiah came and found a cave-dwelling, and he brought there the tent and the ark and the altar of incense; then he sealed up the entrance.”