FOR PASSENGER TRAVEL FROM PHROMPHONG To
ICONSIAM
Use Platform 2 to Siam Station Change to Platform 3 to Krung Thon Buri Station
Then
Buy another Train Ticket to ICONSIAM
WAT PHO, WAT ARUN, GRAND PALACE, KHAOSAN ROAD
Use Platform 2 to Asok Station
Then
Buy another train ticket to Sanamchai Station
Travel Spot is around there
PRATUNAM
Use Platform 2 to Chitlom Station
Walk around 15 Minute (800m) to Pratunam
This is image for travel in Bangkok by Metro with Station Code

You can download full image here
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Have enjoy when visit in Bangkok
winchama