Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) from its bottom in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
Karst feature in Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
Light beam in Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
Morning beam of light in Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
Cave of Brightness (Musfer Cavern, Dahl Al Misfir) sinkhole in south central area. Qatar, February 19, 2010
Interior of Cave of Brightness (Musfer Cavern, Dahl Al Misfir) sinkhole in south central area. Qatar, February 19, 2010
Thorn Acacia (Acacia ehrenbergiana, local name Salam) trimmed by grazing camels in desert near Cave of Brightness in south central area. Qatar, February 19, 2010
A cave in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 16, 2016
A cave in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
Old Um Al-Shobrum Police Station south-west from Doha. Qatar, February 27, 2015
Bush of Leptadenia pyrotechnica in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
View from a crest of sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Sand mound with Leptadenia pyrotechnica in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Sand-blast type of wind abrasion in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Desert rock carved by drifting sand (aeolian abrasion) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Aeolian abrasion of limestone rocks (carved by drifting sand) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Sedge (Cyperus conglomeratus)(?) growind at the foot of a sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Some grass, probably sedge (Cyperus conglomeratus)(?), growing on a crest of sand dune in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Desert lizard Arabian toad headed agama (Phrynocephalus arabicus) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Camouflaged desert lizard Arabian toad headed agama (Phrynocephalus arabicus) in Traina Sinkhole (karst depression) AOI 2 north-west of Khor Al Adaid. Southern Qatar, January 23, 2015
Area of Doha Bank in West Bay south-west from Exhibition Roundabout. Doha, Qatar, February 3, 2012
Cave deposits in Cathedral Cave in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
Financial Center in West Bay south from ASAS Tower West, view from a balcony of Room 2303. Doha, Qatar, February 4, 2011
Ambassadors Street in West Bay south from ASAS Tower West, view from a balcony of Room 2303. Doha, Qatar, February 4, 2011
South-east corner of Nakheel Tower in West Bay. Doha, Qatar, August 24, 2015
Palm and Burj Qatar towers in West Bay. Doha, Qatar, February 25, 2015
Palm, Tornado, and Burj Qatar towers in West Bay. Doha, Qatar, February 25, 2015
Lobby of WTC Tower in West Bay. Doha, Qatar, February 25, 2015
Ministry of Education in West Bay. Doha, Qatar, February 24, 2015
Palm, Tornado, and Burj Qatar towers in West Bay at morning. Doha, Qatar, February 25, 2015
Palm and Burj Qatar towers from a foot of WTC Tower in West Bay. Doha, Qatar, February 25, 2015
Texture of mold-like fungus on a tree north-west from Verperlud Island near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Palm, Tornado, and Burj Qatar towers in West Bay at morning dusk. Doha, Qatar, February 25, 2015
Reflections of Al Bidda, WTC, and Burj Qatar towers in West Bay from Corniche promenade. Doha, Qatar, February 26, 2015
Sand texture at sunrise near Sealine Beach Resort near Mesaieed, view to south-east. Southern Qatar, July 10, 2015
Olympic and Ezdan Towers in West Bay. Doha, Qatar, February 24, 2015
Amwal Tower in West Bay, view to the south from a balcony of Room 2303 of ASAS Tower West. Doha, Qatar, February 12, 2011
Reflections of West Bay from Corniche promenade at morning. Doha, Qatar, February 26, 2015
Area of Ministry of Development and Planning in West Bay. Doha, Qatar, February 24, 2015
Reflections of West Bay lights from Corniche promenade. Doha, Qatar, February 26, 2015
Construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 1, 2015
Diplomatic area of West Bay from a beach south of InterContinental Hotel. Doha, Qatar, February 12, 2011
Northern area of West Bay from a beach south of InterContinental Hotel. Doha, Qatar, February 12, 2011
A lake and a bench near a trail south-west from Visitor Center in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
Texture of a hill top in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, February 14, 2015
Aamal (Golden) Tower at Ambassadors Street in West Bay south from ASAS Tower West, view from a balcony of Room 2303. Doha, Qatar, February 4, 2011
Workers going from construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 1, 2015
Golden texture of mihrab of Education City Mosque. Doha, Qatar, October 12, 2015
Tornado Tower from Majlis Al Taawon Intersection in West Bay. Doha, Qatar, February 24, 2015
Palm and Tornado towers in West Bay from a lobby of WTC Tower. Doha, Qatar, February 25, 2015
Texture of wrinkled crust fungus (Phlebia radiata mushroom) north-west from Verperlud Island near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
Area of American military air base Al Udeid (Abu Nahlah Airport) near Mesayeed, south-west from Doha, view from a window of a car. Qatar, November 6, 2015
Workers gathering on construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 3, 2015
Evening view of construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 1, 2015
Workers exiting from construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 1, 2015
Workers crowding on construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 3, 2015
Texture of protruding gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
Sodom Apple (Calotropis procera) on Al Sham Street in West Bay. Doha, Qatar, February 19, 2015
Tornado and Palm Towers from Majlis Al Taawon Intersection in West Bay. Doha, Qatar, February 24, 2015
Workers crowding at exit of construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 3, 2015
Workers standing in lines on construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 3, 2015
Workers loading buses near construction of Qatar Petroleum (QP) District Project in West Bay from a window of Room 1-2244 of Ezdan Hotel. Doha, Qatar, February 1, 2015
Texture of qiblah wall in prayer hall of Education City Mosque. Doha, Qatar, October 12, 2015
Trunk texture of Indian Bat Tree (Ficus amplissima) in Aspire Park. Doha, Qatar, June 1, 2015
Southern sandbur grass (Cenchrus echinatus) taken from Al Sham Street in West Bay. Doha, Qatar, February 19, 2015
Texture of a sand mound near Sealine Beach Resort near Mesaieed, view to north-west. Southern Qatar, July 10, 2015
Palm Towers and Ministry of Development, Planning and Statistics from Majlis Al Taawon Intersection in West Bay. Doha, Qatar, February 24, 2015
Burj Qatar Tower from a foot of WTC Tower in West Bay. Doha, Qatar, February 25, 2015
Warty texture of bitter gourd (melon) in vegetable market. Doha, Qatar, February 17, 2012
Area around Kempinski Hotel of West Bay from a beach south of InterContinental Hotel. Doha, Qatar, February 12, 2011
In Cathedral Cave in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
Cathedral Cave in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
Tuxedo cat in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 3, 2016
Sitting cat in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 30, 2016
Resting cat in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 30, 2016
Agave in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Leaves of agave in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 3, 2016
Dahl Al Hamam Park at Al Markhiya Street at rain. Doha, Qatar, March 16, 2016
View to the south from empty space south from Al Sham Street in West Bay. Doha, Qatar, January 31, 2012
Wadi Natuf valley with Wayfarer s shelter and cave cistern in Neot Kedumim biblical landscape park, west from Jerusalem. The Middle East, February 7, 2001
Red flowers of pelargonium in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Leaves of agave in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Cereus cactus in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Cereus(?) cactus in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, April 12, 2016
Ornamental amaranth plants in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 30, 2016
Agave leaves in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Chinaberry (Melia azedarach) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Flowers of Lantana camara in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, April 12, 2016
Purple nut sedge (Cyperus rotundus) from Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 30, 2016
Suicide tree (Cerbera odollam) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 30, 2016
Butterfly pea (Clitoria ternatea) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, April 26, 2016
Pagoda tree (Plumeria alba) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 3, 2016
Bark texture of desert fan palm (Washingtonia filifera or may be robusta) in a park at Al Intisar Street near a corner with Onaiza. Doha, Qatar, February 2, 2016
Pink shower tree (Cassia javanica) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 3, 2016
Alyssum (Lobularia maritima) planted in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Alyssum (Lobularia maritima) flowers in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Weeping bottlebrush (Callistemon viminalis(?)) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Orchid tree (Bauhinia variegata) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, March 21, 2016
Leaves of suicide tree (Cerbera odollam) in Dahl Al Hamam Park at Al Markhiya Street. Doha, Qatar, May 30, 2016
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