 Stone steps of grand stairs of Fort No. 1 (Stronghold Liter B) near Vyborg. Russia, July 20, 2024
 Stone wall of Fort No. 1 (Stronghold Liter B) near Vyborg. Russia, July 20, 2024
 Undeground shelter in Fort No. 1 (Stronghold Liter B) near Vyborg. Russia, July 20, 2024
 Small stalactite formed of calcium salts deposited by dripping water in Fort No. 1 (Stronghold Liter B) near Vyborg. Russia, July 20, 2024
 Stone stairs of Gril Platz in Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Large granite stone in Vyborg Bay near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Corner tower with stone stairs of Al-Rekayat Fort in Umm Jasim area. Northern Qatar, June 6, 2015
 Grey lichen on a granite stone in Paltsevo Rock Massif near Svetogorsk Highway near Vyborg. Russia, July 20, 2024
 Folious lichens on a stone on Storozhok Peninsula near granite quarry near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Granite rocks and a boat in Vyborg Bay from Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Vyborg Bay from Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Granite boulders in Vyborg Bay near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Large granite boulders in Vyborg Bay near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Granite stones on a beach of Vyborg Bay near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Stairs of a house at 10A Storozhevoy Bashni Street. Vyborg, Russia, September 10, 2016
 Stairs of Al-Rekayat Fort in Umm Jasim area. Northern Qatar, May 21, 2016
 Stony beach of Vyborg Bay near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Stone stairs in Sergievka Park. Old Peterhof, west from Saint Petersburg, Russia, October 5, 2017
 Old stone stairs in John-Bogoslov Cheremenetskiy Monastery, south from Luga. Leningrad Region, Russia, August 24, 2013
 Stones scattered on a granite base on a beach of Vyborg Bay on Storozhok Peninsula near granite quarry near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Pine trees growing among granite stones on a beach of Vyborg Bay on Storozhok Peninsula near granite quarry near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Small stone stairs of Bienkovsky Mansion in Zakhodskoe, 50 miles north from Saint Petersburg. Leningrad Region, Russia, August 7, 2016
 Shores of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Powder bunker of Vyborg Fortress. Russia, July 20, 2024
 Ammunition storehouse in a cave near Vyborg. Russia, July 20, 2024
 Stone stairs in Robert H. Treman State Park near Ithaca. New York, October 8, 2005
 Interior of a small granite cave near Vyborg. Russia, July 20, 2024
 Gate of a powder bunker of Vyborg Fortress. Russia, July 20, 2024
 Buildings of Vyborg Historical Power Station at 20A Morskaya Naberezhnaya Street. Vyborg, Russia, August 5, 2024
 Examining a granite cliff during a geological tour near Vyborg. Russia, July 20, 2024
 A house at 40 Geroev Street in Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Various crustose lichens on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Stone ruins at Parkovaya Street in Vyborg. Russia, May 24, 2019
 Common groundsel (Senecio vulgaris) on granite of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Texture of green moss on granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Close-up of green moss on granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Physcia lichen on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Brown crustose lichen on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Rosette lichen Physcia on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Stone house on Suvorovsky Prospect. Vyborg, Russia, August 12, 2012
 Stone fence of Monrepo Park. Vyborg, Russia, September 1, 2007
 Stone ruins on Tverdysh Island. Vyborg, Russia, June 23, 2017
 Stone stairs in Qanat Quartier (Venetian style waterfront village), in Pearl Development Project. Doha, Qatar, September 3, 2015
 Stone stairs of research section (blue area) of Texas A and M University on campus of Education City. Doha, Qatar, April 7, 2014
 Stone stairs in Qanat Quartier (Venetian style waterfront village) in Pearl Development Project. Doha, Qatar, June 16, 2016
 Rapakivi granite with large round crystals on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Xanthoparmelia and Rhizocarpon geographicum lichens on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Close-up of rosette lichen Physcia on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Flowers of stonecrop (Sedum, Hylotelephium telephium(?)) on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Granite stone in a courtyard at 12 Krepostnaya Street. Vyborg, Russia, June 21, 2014
 Stone fence of Monrepo (Mon Repos) Park. Vyborg, Russia, September 10, 2016
 Rock shield lichen (Xanthoparmelia) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Yellow map lichen (Rhizocarpon geographicum) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Grey crustose lichen Aspicilia on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Stone bear from an old railway station building on Vokzalnaya Street in Vyborg. Russia, May 24, 2019
 Growth of yellow map lichen (Rhizocarpon geographicum) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Resupinate polypore mushroom on a fallen spruce branch in a rocky mountainous area around Paltsevo, near Vyborg. Russia, July 20, 2024
 Rosette of yellow map lichen (Rhizocarpon geographicum) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Bridge to Marsa Arabia in Pearl Qatar Development from a stone stairs. Doha, Qatar, October 23, 2015
 Large mossy stone in a forest near Monrepo (Mon Repos) Park. Vyborg, Russia, September 10, 2016
 Birch growing on a stone fence at Storozhevoy Bashni Street in old city of Vyborg. Russia, May 24, 2019
 Stone gate of a house at Lenina Prospect in Vyborg, north from Saint Petersburg. Russia, October 7, 2016
 Stone fence of Monrepo (Mon Repos) Park. Vyborg, north from Saint Petersburg, Russia, October 7, 2016
 Stone ruins near Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Circular round patch of yellow map lichen (Rhizocarpon geographicum) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Stairs in Marble Palace. Saint Petersburg, Russia, July 25, 2005
 Stone remains near Al Thugab Fort. North-west coast, Qatar, June 20, 2015
 Stone balls at archeological display near Zubara Fort. Northern Qatar, September 20, 2014
 Stone ruins near Al Thugab Fort. North-west coast, Qatar, June 20, 2015
 Stone fence of a tower of Al Thugab Fort, on northern coast. Qatar, December 12, 2015
 Ruins of a house at the beginning of Stony Trail (Kamenistaya Tropa) near Kubenskoe in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Ruins of a bridge to Kubensky Island near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 Rock climbing on cliffs of Paltsevo Rock Massif near Svetogorsk Highway near Vyborg. Russia, July 20, 2024
 Stone mosque at the entrance of Al-Rekayat Fort in Umm Jasim area. Northern Qatar, June 6, 2015
 Remains of stone walls near Al Thugab Fort. North-west coast, Qatar, June 20, 2015
 Golden lichen Xanthoria parietina on a stone in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, July 31, 2024
 View of Fort Alexander (Plague) from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Close-up of crustose lichen Lecanora muralis (Protoparmeliopsis muralis) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Texture of elegant sunburst lichen Rusavskia elegans (formerly Xanthoria elegans) on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Elegant sunburst lichen Rusavskia elegans (formerly Xanthoria elegans) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Rosette of crustose lichen Lecanora muralis (Protoparmeliopsis muralis) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Stone house of Ben Sweden in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 12, 2014
 Ruins of Fort Pavel I (Risbank), view from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Close-up of elegant sunburst lichen Rusavskia elegans (formerly Xanthoria elegans) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Fort Pavel I (Risbank) with Lomonosov in background, view from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Stone house with narrow windows in Ain Mohamed Fort near Al Areesh Road north from Zubara. Northern Qatar, December 26, 2015
 Turkish Tent Stone on Tent Island in Monrepo (Mon Repos) Park. Vyborg, north from Saint Petersburg, Russia, October 7, 2016
 Yellow map lichen (Rhizocarpon geographicum) and another crustose yellow lichen on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 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
 Golden lichen Xanthoria parietina with another grey crustose lichen on a stone in Pavlovsk Park. Pavlovsk, suburb of Saint Petersburg, Russia, July 31, 2024
 Gotleben Fort on horizon from a spit in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Gotleben Fort in Gulf of Finland from a spit in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 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
 Fort Peter. Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Fort Alexander (Chumnoy). Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Courtyard at 1 Nekrasova Street. Vyborg, Russia, August 5, 2024
 Courtyard at 39 Kutuzova Street. Vyborg, Russia, August 5, 2024
 Entrance stairs of a house at 5 Pushkin Street. Odessa, Ukraine, July 5, 2009
 Fort Menshikov (Menshikovskaya Batareya). Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
|