Hello Grace,
You are in a forum where members come from all around the world and not just Asia. There is only one thing that keeps us united here, it's not culture but our beautiful Islam.
If you mean culture in regards to language, food, clothing styles, etc then most countries are different in this regard, but in regards to religion (or Islam) we share a common belief that no one has the right to be worshiped except God alone and that prophet Muhammad (peace be upon him) was the
last messenger of God.
It is very important to distinguish culture from religion. Many Muslims today fall into this trap. Continue to learn Islam properly and you will distinguish what is culture and what is Islam.
For example, the Quran gave woman voting rights about 1500 years ago (U.S. gave women voting rights less than 80 years ago). This is not culture but a God given right and every Muslim country has to or should abide by this.
Inshallah (God willing) you will learn that Islam is a beautiful and growing religion for
all mankind.
Please watch these two informative documentaries by PBS:
http://www.turntoislam.com/forum/showthread.php?t=30339
http://www.turntoislam.com/forum/showthread.php?t=30415