Can you find HK (and Shenzhen) in this poster of the world’s subway systems?

US artist and urban planner Neil Freeman made line drawings of all of the world’s 'high-capacity, grade-separated heavy rail' systems for a 29 by 23-inch black-and-white poster that will set you back a mere $310 (including shipping). 

 

Not only will the poster make a great HK-themed gift for someone on your list, but it also functions as an incredibly difficult game of “Where’s Wally's Subway Stop?” It took us a solid five minutes to identify the HK/Shenzhen subway, but see if you can do any better. 

 

Hint: The transit networks are organised from largest and most complicated to the simplest. Will Pulos