Old City of Sana'a

Sana'a is one of the oldest continuously inhabited cities in the world

Old City of Sana'a

This postcard arrived from Denmark sent by Genek

Sana'a, also spelled Sanaa or Sana, is the largest city in Yemen and the centre of Sana'a Governorate. 

The old fortified city has been inhabited for more than 2,500 years and contains many intact architectural gems. It was declared a World Heritage Site by the United Nations in 1986. Efforts are underway to preserve some of the oldest buildings some of which, such as the Samsarh and the Great Mosque of Sana'a, are more than 1,400 years old. Surrounded by ancient clay walls which stand 9–14 metres (30–46 ft) high, the Old City contains more than 100 mosques, 12 hammams (baths) and 6,500 houses. Many of the houses resemble ancient skyscrapers, reaching several stories high and topped with flat roofs. They are decorated with elaborate friezes and intricately carved frames and stained-glass windows. - in: wikipedia