Galery dedicated to all the lovers of Romanian "holographic pyramids"...
And of course, THE Romanian holographic pyramid: or
Ok, it is much more impressive with some fog:
or here: Anyway, some explanations here about the Mount Teide, also relevant for the other examples:
Why does the shadow of this volcano look like a triangle? The Mount Teide volcano itself does not have the strictly pyramidal shape that its geometric shadow might suggest. The triangle shadow phenomena is not unique (...)