Most likely Vatican City.
The flattest country in the world is Maldives.
No, Australia is not the flattest country in the world.
Denmark.
maldives
Denmark
Denmark.
The netherlands
The flattest mountain in the World is a closely guarded secret. No Country wants to admit to having it.
Australia is the only continent country (Antarctica is not a country), and it is the flattest continent as well. There are significant mountain ranges, but they are considerably lower than those of other continents.
Flattest.
flatter/flattest
The widest flattest back muscle.