Answer:
Every country has one, though we are not the same. Waving to our citizens, throughout the wind and rain. What is it?
The more you look at it, The less you see.
What must be looked through in order to see?
I travel the world and I am drunk constantly. Who am I?
What has been around for millions of years but is never more than a month old?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.