Asia has a downtown??? lol
Ok, domains are not illegal per se, it is more like "is it infringing on a TM?". There are many factors invloved in determining if your domain violates TM rights. the name, the TM, usage, classification, intent...
So it usually isn't wwther the name is illegal, it more like ar the actions of the owner illegal. So due diligence in researching names before you register them always help. Also, having an idea in mind wouldn;t hurt either. Many people will see a domain and invent a reason to use it (knowing that it is infringing on the TM) and the TM holder would ahve to prove the person registered the name in bad faith.
It is usually never a black and white guideline with domains, usually many gey area are involved.