Look out, Evidentialists and Quasi-Evidentialists, for this interesting demonstration of the fallibility of the senses. (link).
Thanks be to God for Propositional Revelation,
Some readers seem to think that the example in the link above is a fraud, and that the two tiles are not the same color. For their benefit, I've linked to a second, similar, illusion:
(link), as well as to a further demonstration of the original illusion (link).