'Hell' in German means light and is actually the standard word used to describe pale ale, so although they know full well what they're doing, they aren't doing so completely wantonly!
I love Ouagadougou too - always think it should be twinned with Ljubljana 
There's Knockin in Shropshire (and yes, they do have a village shop which is named as you would hope).
Don't forget the magnificent Brokenwind in Abderdeenshire.
There's Weedon Bec near Daventry (poor Bec, whatever did she do to deserve that?!)
There used to be a Butt Hole Road in Doncaster, but they changed it to the very boring Archers Way a few years ago after the residents got fed up with all the tourists stopping off for photos and stealing the sign. There's still a Butthole Lane in Leicestershire, which remains proudly so-named!
There's a village in Merseyside called Lunt - the residents have petitioned for a silent 'a' to be added between the 'L' and the 'u' as the 'u' gets, erm, amended on a very regular basis.
There's a road in Birmingham called Dogpool Lane, which more often than not has its last letter painted out.
My favourite of all has to be the village of Rottenegg in Austria 