Jiangsu National Security Education Museum
Even if you are a museum-goer, you must be a Chinese citizen to visit this place. This museum contains classified documents and equipment used for Chinese spying. In case you were planning to take a camera inside, photography is not allowed within the facility. Apparently, they house a series of sensitive documents from as far back at 1927. Certain exhibits include guns that are disguised as lipstick as well as maps hidden within decks of cards.