Yuan Dadu City Wall Ruins Park [Photo via VCG]

"Begonia Stream" is one of the most beautiful flower viewing spots in Beijing during spring, and it is also one of the ten scenic spots of the Yuan Dadu City Wall Ruins Park. In April, thousands of begonia trees in over 20 varieties, including midget crabapple, golden star begonia and flowering quince, bloom simultaneously on the banks on both sides of the canal, offering a grand scene of innumerable begonia flowers in full blossom.