Ummm...Most likely where it's not legal to do so. Maybe your question should be just a bit more vague?
depends on the country really, most countries have some form of licence that needs to be had before you can carry a firearm in public
In a lot of situations, it is illegal to carry it on private property, no matter what kind of permit you have.
As a felonious male, nowhere. Girls have more options. http://wgntv.com/2014/04/24/police-teen-hid-gun-in-vagina/
It would be easier to ask "where can handguns be carried" most countries don't permit civilians to carry firearms apart from to/from ranges/licences shooting grounds.
I've noticed all of Christina's questions were posted on the same day and no responses to any of the posts. Anyways locals laws regarding open or concealed carry vary, even within a country such as the United States, as it's a state to state thing. For starters: http://en.wikipedia.org/wiki/Overview_of_gun_laws_by_nation