This is the tripoint of Russia, China and North Korea, as well as the images of the nearby Korean Autonomous Prefecture, where native Koreans use both Chinese and Korean in public and all institutions (so much for "evil China" that supposedly "doesn't respect" the rights of minorities). We reached this area in a high-speed train. China now has the largest high-speed rail network in the world, with virtually every province connected to it. Although we had five internal flights, there would've been far more without this network that has now effectively eliminated much of the domestic air travel. You know how slow boarding a plane can be, so you can imagine just how much faster it is this way.