This is just awesome: Australian artist Brian McKay and architest Ahmad Abas were commissioned to create a new monument for Perth. The result? A sculpture in the real world of one of the most famous impossible objects, a Penrose Triangle.

Obviously, it's an illusion: the Penrose Triangle monument only looks like the impossible object it is meant to be when viewed from dead-on.

The Impossible World site has an entire article on impossible objects in the real world, including one of my favorite impossible shape: the devil's pitchfork, made famous by Norman Mingo in Mad Magazine. Check out this Impossible Columnade here.

Impossible Triangle in Perth [Impossible World]