20. Sanaa, Yemen
In Sana’a or Szanaa in Yemen, the political situation is currently extremely unstable. Foreigners are not advised to visit this city. There is an extreme high risk of being a target for terrorist activity and kidnapping.
19. Kinshasa, The Democratic Republic Congo
In The Democratic Republic of Congo (DRC), tourists used to trek into the eastern border of the Virunga Mountains to see gorillas. But it is no longer safe for doing so.