Though one of these lines appears to be longer than the other, they are in fact the same length. Known as “The Devil's Tuning Fork”, this figure’s two cylindrical prongs mysteriously transform two bar

Though one of these lines appears to be longer than the other,
they are in fact the same length.
Known as “The Devil's Tuning Fork”, this figure’s two cylindrical prongs mysteriously transform
two bars at the opposite end.
Your mind subconsciously interprets this line drawing of an impossible cube a three-
dimensional object, even though it is not actually possible for such an object to exist.
Annoyingly, the table on the right has an extra leg. Can you see it?
This staircase makes four 90-degree turns, yet forms a continuous loop that would not be possible
in the real world.