How to find the center most of Bangkok

If you are new visitors of BKK and then you want to learn and explore the BKK. by using public transportation system in BKK.
Where to begin? I would say "Victory Monument" is the most centralize and be BKK road system hub where all of the public bus ,train,subway and cab are meet here.
You can go almost every parts of BKK. from Victory Monument
How to get there.
Well ,if you r really new and dont know how to communicate I would say "Take a taxi" is the best and convenient way to do tell the driver to take you to "Victory Monument" or say in Thai "ANUSAWAREE CHAI SAMORLAPOOM" or take a Thai word by snap shot "อนุสาวรีย์ชัยสมรภูมิ"
Then ,over there you can read from the sign or ask local people who can speak English and guide you to your targets.
Or walk up the bridge to reach the sky train with provide in English sign and official for tourist to your target.
If you still,not sure yet,you can wander around "Victory Monument" there are some number of shopping center,hotels ,bank services and etc. for you to see and look around as well.
If you were interested in visit the shopping center of BKK. Like MBK ,Siam center ,Central world ,I would say the easiest way is take a sky train from "Victory Monument" and get of at "Siam station" and then you get to the biggest hub of shopping center in BKK,Thailand.
But.if you prefer shopping and looking for bargaining style I would say take a sky train from "Victory Monument" to "MoChit station" and walk to JJ Market center.