 Stone 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
 Stone steps of grand stairs of Fort No. 1 (Stronghold Liter B) near Vyborg. Russia, July 20, 2024
 Interior of a small granite cave near Vyborg. Russia, July 20, 2024
 Cotyledons (seed leaves) of seedlings collected and deposited by rainwater on Raccoon Run Trail west from a water treatment plant in Lick Creek Park. College Station, Texas, January 18, 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
 Seedling of a dicotyledon plant narrowleaf marsh elder (Iva angustifolia) collected and deposited by rainwater on Raccoon Run Trail west from a water treatment plant in Lick Creek Park. College Station, Texas, January 18, 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 stone 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
 Stony beach of Vyborg Bay near Stony Trail (Kamenistaya Tropa) in Kivi Park south from Chulkovo, west from Vyborg. Russia, July 27, 2024
 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
 Dead trees in are of calcium carbonate deposit in Norris Geyser Basin. Yellowstone Park, Wyoming, July 24, 2010
 Shores of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Ammunition storehouse in a cave near Vyborg. Russia, July 20, 2024
 Powder bunker of Vyborg Fortress. 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
 Brown crustose lichen on a granite shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 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
 Rosette lichen Physcia on a 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
 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
 Grey lichen on a granite stone in Paltsevo Rock Massif near Svetogorsk Highway near Vyborg. Russia, July 20, 2024
 Yellow map lichen (Rhizocarpon geographicum) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Rock shield lichen (Xanthoparmelia) 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
 Resupinate polypore mushroom on a fallen spruce branch in a rocky mountainous area around Paltsevo, near Vyborg. Russia, July 20, 2024
 Growth of yellow map lichen (Rhizocarpon geographicum) on a granite boulder on shore of Gvardeysky Island. 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
 Water well at Poperechny Pereulok. Vyborg, Russia, September 14, 2013
 Close-up of cotyledons (seed leaves) of seedlings collected and deposited by rainwater in Lick Creek Park. College Station, Texas, January 18, 2024
 Dripping bonnet (Roridomyces roridus) near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018
 Densly packed cotyledons (seed leaves) of seedlings collected and deposited by rainwater in Lick Creek Park. College Station, Texas, January 18, 2024
 Circular round patch of yellow map lichen (Rhizocarpon geographicum) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Water pool on Ushakova Street. Vyborg, Russia, June 23, 2017
 Caps of dripping bonnet (Roridomyces roridus) near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018
 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
 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
 Rock climbing on cliffs of Paltsevo Rock Massif near Svetogorsk Highway near Vyborg. Russia, July 20, 2024
 Pluteus mushrooms together with dripping bonnet (Roridomyces roridus) near Lisiy Nos. West from Saint Petersburg, Russia, August 26, 2018
 Balconies at 6 Lenina Street showing water damage. Vyborg, Russia, August 12, 2012
 Water gutter pipe on Storozhevoy Bashni Street. Vyborg, Russia, August 12, 2012
 View of Fort Alexander (Plague) from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Elegant sunburst lichen Rusavskia elegans (formerly Xanthoria elegans) 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
 Rosette of crustose lichen Lecanora muralis (Protoparmeliopsis muralis) on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Close-up of crustose lichen Lecanora muralis (Protoparmeliopsis muralis) on a granite boulder on shore of Gvardeysky Island. 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
 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
 Yellow map lichen (Rhizocarpon geographicum) and another crustose yellow lichen on a granite boulder on shore of Gvardeysky Island. Vyborg, Russia, July 20, 2024
 Stalactite plant (Kalanchoe beharensis Fang ) in TAMU Holistic Garden in Texas A and M University. College Station, Texas, July 28, 2013
 Bugainaya Trail ecological hiking route through reeds in shallow water near Lisiy Nos with Lakhta Center skyscraper in background, west from Saint Petersburg. Russia, July 19, 2024
 Light well courtyard formed by buildings on Klinsky Prospect Street in Sementsy area. Saint Petersburg, Russia, August 8, 2012
 Small park on Moskovsky Prospect. Vyborg, Russia, August 12, 2012
 Water stream of a small creek after a heavy rain in Lick Creek Park. College Station, Texas, February 11, 2024
 Water stream after a heavy rain of a small creek in Lick Creek Park. College Station, Texas, January 5, 2024
 Gotleben Fort on horizon from a spit in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Water drops, or guttation of bracket polypore mushroom Fomitopsis pinicola when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Mushrooms Delicatula integrella on a fallen tree branch near standing water when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024
 Gotleben Fort in Gulf of Finland from a spit in Tarkhovka Park, west from Saint Petersburg. Russia, August 2, 2024
 Needle-shaped crystals of calcium oxalate on banana peel from a supermarket. College Station, Texas, March 4, 2022
 Small Pezizs mushrooms on an old bonfire site in Zakhodskoe, 50 miles north from Saint Petersburg. Russia, July 22, 2024
 Small cup mushrooms Peziza succosella(?) on a side of a path near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024
 Fort Peter. Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Small orange cups of Ascomycete mushrooms Pulvinula convexella near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024
 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
 Water drops, or guttation of bracket fungus Red-Belt Conk (polypore mushroom Fomitopsis pinicola) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight in Sosnovka Park. Saint Petersburg, Russia, July 30, 2024
 Small foliose lichen Cladonia incrassata(?) on granite cliffs in Monrepos Park in Vyborg. Russia, May 24, 2019
 Fort Alexander (Chumnoy). Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Crust formed by fungus (mushroom) Stereum rugosum(?) on a fallen tree north-west from Verperlud Island near Lisiy Nos, south from Saint Petersburg. Russia, February 18, 2017
 Courtyard at 1 Nekrasova Street. Vyborg, Russia, August 5, 2024
 Courtyard at 39 Kutuzova Street. Vyborg, Russia, August 5, 2024
 Common pinmould fungus (Mucor mucedo) on animal dung deposited on a big fallen oak near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, January 4, 2024
 Small orange cups of Ascomycete mushrooms Pulvinula convexella on exposed soil near Lisiy Nos, west from Saint Petersburg. Russia, July 19, 2024
 Fort of Kronshlot in Gulf of Finland. Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Fort Menshikov (Menshikovskaya Batareya). Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Apartment building at 8 Chernomorskiy Pereulok. Vyborg, Russia, August 5, 2024
 Apartment building at 10 Pervomayskaya Street. Vyborg, Russia, August 5, 2024
 Apartment building at 11 Akulova Street. Vyborg, Russia, August 5, 2024
 Neoclassical building at 31 Kutuzova Street. Vyborg, Russia, August 5, 2024
 Corner of a house at 10 Pervomayskaya Street. Vyborg, Russia, August 5, 2024
 Gate of a building at 3 Nekrasova Street. Vyborg, Russia, August 5, 2024
 Graffiti in courtyard at 39 Kutuzova Street. Vyborg, Russia, August 5, 2024
 Apartment building at 4 Nekrasova Street. Vyborg, Russia, August 5, 2024
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