Welcome to Cambodia, Kingdom of Wonder!
 
Some practical, cultural information:
 
Language spoken: Khmer, English (in the main cities)
 
Religion: Buddhism (Theravada), mix with animism and Hinduism.
 
Money : Riels, US dollar. (1 usd = 4000 riels in average)
Both are widely accepted in the country.
Be careful when you get your change back, especially for dollar notes, it should be in perfect condition, not torn or too old or they may be refused by some sellers.
 
Seasons: Dry season (December-May) ; Raining season (June – November)