4. Sanaa, Yemen
Sana'a is the capital and largest city of Yemen. The city of Sana'a in Yemen is considered very dangerous due to the high risk of armed conflict, terrorism, and kidnapping. Due to these threats, the US government advises against traveling to Yemen. Sana'a was a very ancient city and was famous for its wonderful old buildings and the old city has been given UNESCO World Heritage status.
Foreign travelers face high risks in this city including terrorist attacks, kidnappings, and violent crime so it is advisable not to travel here. This place has become one of the most dangerous places in the world.
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