Top 15 Secret Rooms Found by YouTubers sources
https://www.youtube.com/watch?v=KDPnWgVGuhc
https://www.youtube.com/watch?v=ODmE4YcJebs 
https://www.youtube.com/watch?v=F-YIEZCkbJY
https://www.youtube.com/watch?v=R9gUEx4O-4U
https://www.youtube.com/watch?v=E5wmJaQ3GfY
https://www.youtube.com/watch?v=EsVtxiWrqpM
https://www.youtube.com/watch?v=eeyUUgdxYKU
https://www.youtube.com/watch?v=0XPXO4rfj8I
https://www.youtube.com/watch?v=2AlYA0Zv120
https://www.youtube.com/watch?v=XymnmuZosxE
https://www.youtube.com/watch?v=43cWFus8KAk
https://www.youtube.com/watch?v=iEWuT6ZJsr0 
https://www.youtube.com/watch?v=7uATZnf1gVw
https://www.youtube.com/watch?v=D7SFhxT-on8
https://www.youtube.com/watch?v=9yp-61Kd-Vs&t=196s
https://www.youtube.com/watch?v=MD4B3dTR_8A
https://www.youtube.com/watch?v=p_PX86EbI3k