Traveling to Japan? While you're at it, travel back in time, too! City officials in Matsumoto, a city in Nagano prefecture, have commissioned a Virtual Reality app for Matsumoto Castle, the hub of the city's tourism industry. The imposing castle once had two palaces on its grounds, but they were lost to fires in 1727 and 1876. With the help of a free app for smartphones and tablets, visitors can now see the palaces recreated through the lense of their device's camera. The VR recreations were based on extensive historical documents and are accompanied by audio explanations of the views. An expansion of the app with English, Chinese and Korean language options is already on the way, so be sure to try it on your next visit!