I have to use the clues given to solve the puzzle of which place they're talking about:

'This is the largest city of this island country. Big Ben is located here'

I think the country is Britain so...London?

Thanks
-MC

2 answers

Also, what country has a capital that was once named after King Christian IV?

Thanks
-MC
Your first answer is right.

Check this site for your second answer.

http://en.wikipedia.org/wiki/History_of_Oslo