 Archeological display near Zubara Fort. Northern Qatar, January 24, 2015
 Antique glassware at archeological display near Zubara Fort. Northern Qatar, January 24, 2015
 Date palm seeds at archeological display near Zubara Fort. Northern Qatar, January 24, 2015
 Old dates at archeological display near Zubara Fort. Northern Qatar, September 20, 2014
 Copper coin at archeological display near Zubara Fort. Northern Qatar, September 20, 2014
 Stone balls at archeological display near Zubara Fort. Northern Qatar, September 20, 2014
 Broken porcelain at archeological display near Zubara Fort. Northern Qatar, September 20, 2014
 Fish bones at archeological display near Zubara Fort. Northern Qatar, September 20, 2014
 Part of a broken glass bottle at archeological display near Zubara Fort. Northern Qatar, September 20, 2014
 Zubara Fort at sunrise. Northern Qatar, June 20, 2015
 Zubara Fort in northern area (Shamal). Qatar, June 20, 2015
 Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, March 6, 2015
 Cemetery of Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Cemetery at rain in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Old oil drum fence of a farm in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Oil drum fence of a farm in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Washed out clay walls in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Cemetery tombs at rain in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 House of Rashid bin Mohammed Bogarb in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, March 6, 2015
 Stone house with narrow windows in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Farm of a poet Mohammed bin Hamad bin al-Naimi in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, March 6, 2015
 Remains of a water well on a farm of a poet Mohammed bin Hamad bin al-Naimi in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Oil drum fence of a farm of a poet Mohammed bin Hamad bin al-Naimi in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Thunderstorm clouds over Zubara archeological site. Northern Qatar, November 28, 2014
 Rusty oil drum fence of a farm of a poet Mohammed bin Hamad bin al-Naimi in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Remains of oil drum fence of a farm of a poet Mohammed bin Hamad bin al-Naimi in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Approaching cold front over Zubara archeological site. Northern Qatar, November 28, 2014
 Thunderstorm clouds from a beach of Zubara archeological site. Northern Qatar, November 28, 2014
 Brown jellyfish on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Houses of Nasser bin Mohamed bin Mohammed Almkaona in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Houses of Nasser bin Mohamed bin Mohammed Almkaona in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, March 6, 2015
 Ruins of houses of Nasser bin Mohamed bin Mohammed Almkaona in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, March 6, 2015
 Mesquite tree (Prosopis juliflora, Prosopis chilensis) in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Stone houses of Nasser bin Mohamed bin Mohammed Almkaona in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Seeds of Bienertia sinuspersici on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Bienertia sinuspersici with seeds on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Accumulation of jellyfish and seaweeds on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Thunderstorm clouds along approaching cold front over Zubara archeological site. Northern Qatar, November 28, 2014
 Button like fruits of Bienertia sinuspersici on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Brown sargassum seaweed with air bladders on a beach of Zubara archeological site. Northern Qatar, November 28, 2014
 Sargassum seaweed (brown algae) with air bladders on a beach of Zubara archeological site. Northern Qatar, November 28, 2014
 Ancient ingenious intertidal stone fish traps on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Zubara Fort at sunrise. Northern Qatar, September 20, 2014
 Yard inside Zubara Fort. Northern Qatar, September 20, 2014
 Zubara Fort in northern area (Shamal). Qatar, June 11, 2016
 Zubara Fort in northern area (Shamal). Qatar, March 3, 2012
 Yard inside Zubara Fort at sunrise. Northern Qatar, September 20, 2014
 Pottery grid on display in Museum of Islamic Art. Doha, Qatar, March 6, 2013
 Pottery grid on display in Museum of Islamic Art. Doha, Qatar, March 12, 2011
 Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Bush of Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Shoot of Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Young Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Blooming Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Old cemetery of Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Old graveyard of Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Close up of blooming Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Back lit blooming Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Close up of leaves of Al Kheriza beach plant (Halopeplis perfoliata) on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Twig of Al Kheriza beach plant (Halopeplis perfoliata) with minute flowers on a beach near Zubara archeological site. Northern Qatar, October 24, 2014
 Stone house of Ben Sweden in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Reconstructed Zubara Fort on northwest coast. Qatar, June 20, 2015
 Zubara Fort at sunrise. North-west coast, Qatar, June 20, 2015
 Ruins of Homes of Nasser bin Ahmad bin Isa al-Naimi in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Fruits of Zaleya pentandra taken from a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Plant of Zaleya pentandra in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Branch of Zaleya pentandra in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Close up of Zaleya pentandra in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Flowers of Zaleya pentandra in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Zubara Fort and a cannon at sunrise. North-west coast, Qatar, June 20, 2015
 Old fence of a farm of a poet Mohammed bin Hamad bin al-Naimi in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Camelthorn bush (Alhagi maurorum) in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Woody stems of Zaleya pentandra in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Prostrate plant of Zaleya pentandra in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Branch of Zaleya pentandra with fruits in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Stone ruins of Homes of Abdullah bin Nasser bin Mohammed Almkaona in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Plant of camel s thorn (Alhagi maurorum) in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Seaside heliotrope (Heliotropium curassavicum, local name ramram) in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Acacia tree in a farm of a poet Mohammed bin Hamad bin al-Naimi (1912 - 1992) in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Plant of Pulicaria undulata (local names jithjath, yethyas) in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Seedling of seaside heliotrope (Heliotropium curassavicum, local name ramram) in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Blooming Pulicaria undulata (local names jithjath, yethyas) in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Ruins of homes of Nasser bin Mohamed bin Mohammed Almkaona in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Prostrate plant of seaside heliotrope (Heliotropium curassavicum, local name ramram) in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Plants of Pulicaria undulata (local names jithjath, yethyas) with Ziziphus trees in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Corner of Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Dr. Petersen guiding a tour of a fort at Qal at Ruwayda archeological Site on northwest coast for Qatar Natural History Group. Qatar, February 6, 2010
 Observation deck of Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Stone ruins near Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Courtyard of Al-Rekayat Fort in Umm Jasim area. Northern Qatar, June 6, 2015
 Round tower of Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 View of a farm from Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Fleabane Daisy (Erigeron bonariensis, Conyza bonariensis) with flowers in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Flowers of fleabane Daisy (Erigeron bonariensis, Conyza bonariensis) taken from a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Fleabane Daisy (Erigeron bonariensis, Conyza bonariensis) with fluffy seeds in a silty depression in Al Nuaman (Al Numan) near Zubara. Northern Qatar, January 8, 2015
 Stone fence of a tower of Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Corner of Al Thugab Fort with a round tower, on northern coast. Qatar, December 12, 2015
 Round tower at the corner of Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Wide round tower at the corner of Al Thugab Fort, on northern coast. Qatar, December 12, 2015
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