Answer:
Berlin Wall
Explanation:
that's what the border used to be
The answer is volcanic mountains
In historical terms, this would be called a colony, but currently this name is no longer used and there are no places actually known as "colonies".
The current political term for this is a "territory": this is the correct answer, one example are the overseas territories of France.
All mass isn't all together in one area but is actually more spread out.
