A desert capital on a hill
Bahla Fort stands on a hill among palm trees in Oman's Ad Dakhiliyah Governorate. A fort is a strong building designed to keep people safe and to control the land around it. This fort looks over an oasis, a green place in the desert where fresh water allows people to live and grow food. The Banu Nebhan made Bahla their capital between the twelfth and late fifteenth centuries.
The fort has courtyards and three main parts: Al-Qasbah, Bait Al-Jabal, and Al-Bait Al-Hadith. Builders constructed its walls and towers using mud bricks, which are blocks made from earth. These rest on stone foundations, meaning stone bases set into the ground to give the structure stability.
Walls, trade, and water
The fort was only one part of the area's defences. An outer wall enclosed the local homes and farmland. This wall included gateways, watchtowers, and a walkway for guards. The walled oasis also includes mosques, a market, and places where people make pottery. The old market had narrow lanes and single-storey shops, with the fort looking directly down on them from the hill above.
People could not live in this desert area without a reliable water supply. They dug wells and built underground channels to carry spring water to homes and farms across the oasis. According to a UNESCO statement from 2010, some of these water channels and historic travel routes continue outside the area included in the World Heritage site.
Repairing and protecting history
Bahla was Oman's first World Heritage site, added to the list in 1987. The following year, in 1988, it entered the Danger List. A 2004 UNESCO report identified threatening development plans as a main reason.
Starting in 1995, workers made repairs using earth-based materials. They strengthened the fort's walls and towers and improved the drainage, meaning the way water flows away from the structure so it does not cause damage. This repair work was carefully documented. UNESCO removed Bahla from the Danger List in 2004, citing improved management and Oman's decision to stop unsuitable modern construction near the site.
Leaving the Danger List did not mean the site was completely safe. In 2010, UNESCO reported that parts of the site were breaking down and that water was not draining away well. It also reported the use of unsuitable materials to rebuild parts of the site.
