Not really you will get people to confess,
There are evidence of people having successfully done it! The only doubt is they cannot advertise themselves having millions of worth property. Lots of discovery has been done and is still on going.
People find lots of confusing symbols, signs, objects on mountains and rocks some even on large baobab trees and mostly fail to get to the core of the story.
You really need to dig to those related to the historical fact of the subject in order to get to the truth and finally discover the hidden treasure of which requires a lot of science and geographical study.
NOTE: take a note of dangers and hazards that might occur before making a decision on any object you find.
I wish you luck!