 Marble cliffs near a quarry in Ruskeala Mountain Park. Karelia, Russia, September 19, 2015
 Abandoned marble quarry in Ruskeala Mountain Park. Karelia, Russia, September 19, 2015
 Marble rocks near a quarry in Ruskeala Mountain Park. Karelia, Russia, September 19, 2015
 Rocks of abandoned marble quarry in Ruskeala Mountain Park. Karelia, Russia, September 19, 2015
 Large rocks near marble quarry in Ruskeala Mountain Park. Karelia, Russia, September 19, 2015
 Marble fragments in abandoned marble quarry in Ruskeala Mountain Park. Karelia, Russia, September 19, 2015
 View from southern shore of an inundated quarry in Ruskeala Park. Karelia, Russia, September 19, 2015
 Inundated marble grotto in Ruskeala Mountain Park. Karelia, Russia, September 19, 2015
 Northern part of Marble Lake (inundated marble quarry) in Ruskeala Park. Karelia, Russia, September 19, 2015
 View from western shore of Marble Lake (inundated marble quarry) in Ruskeala Park. Karelia, Russia, September 19, 2015
 Fall colors at northern part of Marble Lake (inundated marble quarry) in Ruskeala Park. Karelia, Russia, September 19, 2015
 Ahvenkoski Waterfalls A Zori Zdes Tikhie near Ruskeala. Karelia, Russia, September 19, 2015
 Bank of Finland (Suomen Pankki) office building built in 1915 by architect Uno Werner Ullberg, now National Bank of the Republic of Karelia. Sortavala (Karelia), Russia, September 19, 2015
 Kirova Street. Sortavala (Karelia), Russia, September 19, 2015
 Limestone cliffs in area of Nakhsh Mountain near Salwa Road in southern Qatar, May 8, 2015
 Garden near Zavodskaya Street. Sortavala (Karelia), Russia, September 19, 2015
 Old house at 13 Sovietskaya Street. Sortavala (Karelia), Russia, September 19, 2015
 Sovetskaya Street after a rain. Sortavala (Karelia), Russia, September 19, 2015
 White cat at 10 Karelskaya Street. Sortavala (Karelia), Russia, September 19, 2015
 Fountain of Kirova Square. Sortavala (Karelia), Russia, September 19, 2015
 View from Zavodskaya (Factory) Street. Sortavala (Karelia), Russia, September 19, 2015
 Wooden house at 13 Sovietskaya Street. Sortavala (Karelia), Russia, September 19, 2015
 Wind abrasion of limestone cliffs in area of Nakhsh Mountain near Salwa Road in southern Qatar, May 8, 2015
 Garages at south-east end of Sovetskaya Street. Sortavala (Karelia), Russia, September 19, 2015
 Old railroad service building at 3 Vtoraya Pristanskaya Street. Sortavala (Karelia), Russia, September 19, 2015
 Garages near Sovetskikh Kosmonavtov (Soviet Cosmonauts) Street. Sortavala (Karelia), Russia, September 19, 2015
 Fire Station from a corner of Karelskaya and Vyaynemyaynena streets. Sortavala (Karelia), Russia, September 19, 2015
 City Library (old Town Hall, 1885) at 18 Lenin Street. Sortavala (Karelia), Russia, September 19, 2015
 Kaymanova Street near a corner with Zavodskaya Street. Sortavala (Karelia), Russia, September 19, 2015
 Former Sortavala Lyceum (Johan Jacob Ahrenberg, 1901). Sortavala (Karelia), Russia, September 19, 2015
 Monument of Russian communist revolutionary Vladimir Ilyich Ulyanov (Lenin) (2010) in a public garden near Town Hall. Sortavala (Karelia), Russia, September 19, 2015
 Cliffs of Toll Mountain from Boot Spring Trail. Big Bend National Park, November 26, 2009
 Orange spots on leaves of mountain ash caused by mountain ash-juniper rust fungus (Gymnosporangium cornutum) in Petiayarvi, north from Saint Petersburg. Russia, July 17, 2015
 A park opposite to Laborer s House of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Chess Mountain Cascade in Lower Gardens. Peterhof (Petrodvorets), a suburb of Saint Petersburg. Russia, September 28, 2015
 Golden Mountain Cascade in Lower Gardens. Peterhof (Petrodvorets), a suburb of Saint Petersburg. Russia, September 28, 2015
 Fountains of Golden Mountain Cascade in Lower Gardens. Peterhof (Petrodvorets), a suburb of Saint Petersburg. Russia, September 28, 2015
 A church of Skete of St. Nicolas the Wonder-Worker, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Wooden bridge to Skete of St. Nicolas the Wonder-Worker, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Interior of a church of Skete of St. Nicolas the Wonder-Worker, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Warning "Entrance only for Blessed" in a forest at Main Monastery Road, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Cemetery of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Southern side of Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Pine forest on Monastyrsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Forest on rocks beside Monastyrsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Eastern side of Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Granite rocks beside Monastyrsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Western side of Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Brown cat near the entrance of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Monastyrskaya Bay from southern side of Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 View to the north from a shrine on Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Rocks south-east from Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Some yellow flowers in Lower Garden of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Entrance of Saviour Transfiguration Cathedral of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Interior of Saviour Transfiguration Cathedral of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 View of Saviour Transfiguration Cathedral of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Domed hall of Saviour Transfiguration Cathedral of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Pier of Skete of St. Nicolas the Wonder-Worker on southern side of Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Small island beside Monastyrsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 View of Nikolsky Island from rocks beside Monastyrsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Small rocky island south-east from Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Marsh lousewort (red-rattle, Pedicularis palustris, Russian name mytnik) on southern side of Monastyrsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Knotted pearlwort (Sagina nodosa, Russian name Mshanka) on rocks south-east from Nikolsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Golden marguerite (yellow chamomile, Anthemis tinctoria, Russian name Pupavka) at the slope near the entrance of Valaam Monastery, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Flower of marsh lousewort (red-rattle, Pedicularis palustris, Russian name mytnik) on southern side of Monastyrsky Island, on Valaam Island. Karelia Region, Russia, July 23, 2015
 Quarry near Jabal Al Jassasiya rock carving site, on north-eastern coast. Qatar, May 9, 2015
 Sandstone quarry in Jabal Al Jassasiya site, on north-eastern coast. Qatar, December 12, 2015
 Sunrise over a stone quarry at Jabal Al Jassasiya site, on north-eastern coast. Qatar, December 12, 2015
 Limestone quarry at sunrise at Jabal Al Jassasiya site, on north-eastern coast. Qatar, December 12, 2015
 Sunrise over a limestone quarry at Jabal Al Jassasiya site, on north-eastern coast. Qatar, December 12, 2015
 Oredezh River near red sandstone cliffs. Siverskaya south from Saint Petersburg, Russia, July 20, 2015
 Stone quarry from a rocky ridge in Jabal Al Jassasiya site, on north-eastern coast. Qatar, December 26, 2015
 View of red sandstone cliffs of Oredezh River. Siverskaya south from Saint Petersburg, Russia, July 20, 2015
 El Capitan Mountain at sunset, view from lower Roadside Park south from the mountain. Guadalupe Mountains National Park, Texas, December 28, 2007
 El Capitan Mountain from southern foot of the mountain. Guadalupe Mountains National Park, Texas, December 27, 2007
 El Capitan Mountain from a trail at the foot of the mountain. Guadalupe Mountains National Park, Texas, December 27, 2007
 Mountain laurel flowers on Blue Trail in DeSoto State Park on Lookout Mountain. Fort Payne, Alabama, May 19, 2007
 Unidentified construction, may be for melting of copper near the Timna cliffs in western Timna Park. White sand is result of erosion of the cliffs. The Middle East, April 25, 2001
 Fly on a leaf of mountain ash (Sorbus aucuparia, Russian name Ryabina) near Kavgolovskoe Lake in Toksovo, a suburb of Saint Petersburg, Russia, May 19, 2015
 Back lit leaves of mountain ash (Sorbus aucuparia, Russian name Ryabina) near Kavgolovskoe Lake in Toksovo, a suburb of Saint Petersburg, Russia, May 19, 2015
 Young leaves of mountain ash (Sorbus aucuparia, Russian name Ryabina) near Kavgolovskoe Lake in Toksovo, a suburb of Saint Petersburg, Russia, May 19, 2015
 Limestone cliffs of Jebel Fuwairit. Qatar, January 31, 2015
 Mountain ash in Urochishche Hianikiayze area near Kuzmolovo, north from Saint Petersburg. Russia, September 24, 2017
 Sepals of Mountain hydrangea (Hydrangea serrata) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Flowers of mountain hydrangea (Hydrangea serrata) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Blue flowers of mountain hydrangea (Hydrangea serrata) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Mountain hydrangea (Hydrangea serrata, Russian name Gortenzia) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Weathered limestone cliffs in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
 Sandy wadi from cliffs in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
 Kuzmolovo Quarry north from Saint Petersburg. Russia, May 8, 2017
 The Quarry in Kuzmolovo, north from Saint Petersburg. Russia, May 16, 2017
 Chess Mountain Cascade in Lower Gardens. Peterhof (Petrodvorets), a suburb of Saint Petersburg. Russia, September 22, 2013
 Golden Mountain Cascade in Lower Gardens. Peterhof (Petrodvorets), a suburb of Saint Petersburg. Russia, September 22, 2013
 Flowers of mountain hydrangea (Hydrangea serrata) with drops of rain in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Cliffs of limestone hill of Jebel Fuwairit. North-eastern Qatar, November 14, 2015
 Cliffs of northern tip of Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, April 24, 2015
 Plant of Lotus garcinii under the cliffs of Jebel Fuwairit. Northern Qatar, June 20, 2015
 Northern cliffs of Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, December 20, 2015
 Limestone cliffs in Purple Island (Jazirat Bin Ghanim). Al Khor, Qatar, August 1, 2015
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