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Part of the Tumen River, which divides Russia from North Korea.
North Korea is arguably the most secretive nation in the world.
It shares long borders with China to its north, and also with South Korea. But the third, and by far the shortest, frontier is an 11-mile stretch of land it shares with Russia.
Unlike the Chinese border, the Russian one has allowed access to Google's camera cars, which can come pretty close to the Korea Russia Friendship Bridge ("Druzhny Bridge" in Russia), a rail link between the two nations.
Peek into North Korea from Linenaya Ulitsa, a road along North Korea's 11-border with Russia, through these 2013 photos: