A tank that cannot be missed is Erik's Reef, located in Belgium - Lanaken.
It's a see through tank, and the colors are simply amazing. He has a journal on a dutch forum here: http://www.zeewaterforum.info/forums/showthread.php?t=24871
Hope you will all enjoy this as much as I do:
Thanks for suggesting but my tank isn't really even close to any of the tanks in this thread...
Common your tank is great we need some tanks from the Middle east on this thread. You don't want anyone to link to some of your tank pics do you