We visited the world’s most amazing gadget market

Shenzhen is the Silicon Valley of China, the epicenter of its growing array of homegrown tech titans. But the city also serves as a sort of brain for the massive supply chain that stretches across the country, the place where ideas become prototypes, and prototypes become products.We took a tour through the Huaqiangbei market, a massive collection of vendors who are selling everything from imitation iPhones to circuit boards and soldering irons. This is the place you come to figure out how your