Probably
one of the most famous pieces of architecture in the world, "Waterfall" is a lithograph by Dutch Illustrator M.C. Escher in 1962.
MC Escher 1898-1972, author of "Waterfall" -1961.
The point of this optical illusion is the water appears to flow uphill and over the falls
again in one perpetual loop, which is of course impossible in the real world, (but not in Unreal :-)).
At first there doesn't seem to be anything wrong with the picture until you look more closely at the way the pillars connect to the
troughs. I learned these are called Penrose Triangles.
For a more detailed explanation of how these polygons work see Gerson Elber's "Escher for
Real" page at: http://www.cs.technion.ac.il/~gershon/EscherForReal/
for more computer models of
the Waterfall.
See www.mcescher.com to learn more
about the life and works of Mr. Escher.
This page contains 2 more Escher-ish type maps for Unreal, (one by
Jennifer Reitz, and one by Simon Bulford) although they do not depict
any actual illustrations done by Escher, they do offer a bit of the
look
and feel of his work. http://geocities.com/bestofunreal/
This video game model allows you to explore all the rooms and different areas of the Waterfall from a human's point of view.
Areas that you can't see from the
lithograph are intentionally kept to an unpresuming minimum. I
only took the
liberty of providing Mr. Escher with a comfy table and
chair to
sit by the fire. :-)