In Belgium of course!! and is the Westvleteren 12 produced by Trappist monks from the Saint Sixtus Abbey! which is located in the little town of Westvleteren ! Which is damn hard to get! as you can only buy it from the Monks! once or twice a year...
I can tell you first hand! it is a pretty nice beer.. but watch out since it has 12 degrees of alcohol! Before coming to Belgium I really didn't like beer at all... but here in the country of beer... you always end up finding one that is pretty nice :)
Westvleteren is quite a drive from Brussels but well worth!
is in the middle of nowhere :) but if its sunny is quite nice !
here it is! the number one beer!!!