6Sana’a, Yemen

Yemen’s capital is one of the oldest and highest cities in the world. Sana’a is also one of the most enchanting, its Old City crammed full of Islamic and Ottoman buildings. People have been living in Sana’a for more than 2,500 years, and its exquisite architecture has earned it a place on UNESCO’s World Heritage List. 

Many of the houses here are built of rammed earth known as pisé, and most of its Old City was built before the 11th century. But civil unrest and then Saudi-led air strikes have put the city in danger. Today the Foreign and Commonwealth Office (FCO) and the US Department of State advise against all travel to Yemen.

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