Newly-wed couples take a ride on Line 1 to experience a "subway wedding" in Shenyang, capital of northeast China's Liaoning province on Sept 27, 2010. Line 1 started operation on Monday complete with 50 couples on their wedding day. [Photo/Asianewsphoto]

Newly-wed couples take a ride on Line 1 to experience a "subway wedding" in Shenyang, capital of northeast China's Liaoning province on Sept 27, 2010. [Photo/CFP]

A groom buys subway tickets before boarding Line 1 in Shenyang, capital of northeast China's Liaoning province on Sept 27, 2010. [Photo/Asianewsphoto]

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