In Danish language double "a" at the beginning is pronounced as [o], while "g" at the end of the word is mute. So, [olbor].
In Norwegian language double "a" at the beginning is pronounced as [o] too, while "nd" sounds as [nn]. So, [olesunn].
[orhus]. See above why.
One the English words, pronunciation of which you would never guess: [oltringam].
Brighton & Hove Albion (Eng.)
Lengthy, but not really tricky: [braiton-an-houv-albien].