 A. I. Sherstyuk in the lab of the former 16th Department of S. I. Vavilov State Optical Institute. The room is occupied by an atomic spectroscopy group. Vasilyevsky Island, Saint Petersburg, Russia, April 14, 1999.
 A. I. Sherstyuk among co-workers in the lab of the former 16th Department of S. I. Vavilov State Optical Institute. The room is occupied by an atomic spectroscopy group. Vasilyevsky Island, Saint Petersburg, Russia, April 14, 1999.
 A. I. Sherstyuk in a museum of S. I. Vavilov State Optical Institute, under portraits of founders of the institute (1918). Vasilyevsky Island, Saint Petersburg, Russia, April 14, 1999.
 A monument to a Soviet academician S. I. Vavilov (a brother of a well-known biologist executed for political reasons) in front of a new building of S. I. Vavilov State Optical Institute. The monument faces barbed wire surrounding the institute at Vasilyevsky Island. Saint Petersburg, Russia, April 14, 1999.
 A new building of S. I. Vavilov State Optical Institute facing a restricted access extension of Bolshoi Prospect of Vasilyevsky Island. Saint Petersburg, Russia, April 14, 1999.
 Barbed wire surrounding huge restricted access territory of S. I. Vavilov State Optical Institute (attached to Defense Ministry) at an eastern part of Vasilyevsky Island. Saint Petersburg, Russia, April 14, 1999.
 Museum of S. I. Vavilov State Optical Institute, decorations on the ceiling (the room has reach interior because the building was expropriated from a wealthy family after the Great October Socialist Revolution). Vasilyevsky Island, Saint Petersburg, Russia, April 14, 1999.
 Museum of S. I. Vavilov State Optical Institute with an old artistically decorated chimney and a Soviet-era exposition. (the room has reach interior because the building was expropriated from a wealthy family after the Great October Socialist Revolution). Vasilyevsky Island, Saint Petersburg, Russia, April 14, 1999.
 Museum of S. I. Vavilov State Optical Institute with an old artistically decorated chimney and a Soviet-era exposition. The museum was settled in a former typewriting office (the room has reach interior because the building was expropriated from a wealthy family after the Great October Socialist Revolution). Vasilyevsky Island, Saint Petersburg, Russia, April 14, 1999.
 View of the rotunda of S. I. Vavilov State Optical Institute and Menshikovskiy Palace (?) from Angliyskaya Embankment. Saint Petersburg, Russia, April 13, 1999.
 A monument of S. I. Vavilov in front of State Optical Institute at Vasilievskiy Island. Sankt Petersburg, Russia, October 9, 2000
 Muzhestvo Square with post-Soviet advertisements jack-pot 24 hours (at a former movie theatre) and relax smartly intended for young Russian businessmen. Saint Petersburg, Russia, April 19, 1999.
 View of Vasilyevsky Island Strelka (extremity) from Dvortsovaya Embankment. Saint Petersburg, Russia, April 13, 1999.
 View of the Hermitage and Strelka of Vasilyevsky Island from Kronverkskaya Embankment. Saint Petersburg, Russia, April 6, 1999.
 Repin Street on Vasilyevsky Island paved by cobble-stones. Saint Petersburg, Russia, April 14, 1999.
 Repin Street on Vasilyevsky Island. People are walking from Sredniy Prospect. Saint Petersburg, Russia, April 14, 1999.
 A. V. Sergeev among birches in Sosnovka Park with evening fog. Saint Petersburg, Russia, April 15, 1999.
 A yard of State Optical Institute closed for public, at Vasilievskiy Island. Sankt Petersburg, Russia, October 9, 2000
 Neglected yard of State Optical Institute with posters commemorating its 80th anniversary, at Vasilievskiy Island. Sankt Petersburg, Russia, October 9, 2000
 Gorny Institute on 20-th Line of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 A.S. near a monument of Russian revolutioner Vladimir Lenin in front of Administration Building of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 A. Sergeev in front of a new tri-color Russian flag at Victory Day picnic. Fort Ouiatenon near Lafayette, Indiana, May 9, 1999.
 Tourist guide Sergey Babushkin near a monument of Russian revolutioner Vladimir Lenin in front of Administration Building of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Decaying plaster on a building of 4th Central Research Institute of the Russian Ministry of Defense facing Fontanka River opposite to Summer Garden. Saint Petersburg, Russia, April 13, 1999.
 A.S. at 52 Bolshoy Prospect of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Street corner of 12-th Line of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Bolshoy Prospect of Vasilyevsky Island. Saint Petersburg, Russia, February 1, 2000
 Passage at 64 Bolshoy Prospect of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 - Purdue University - Chemical Department (Dallas - West Lafayette, November 10 - 22, 1997)
 - Purdue University - Chemical Department (Dallas - West Lafayette, November 10 - 22, 1997)
 - Purdue University - Chemical Department (Dallas - West Lafayette, November 10 - 22, 1997)
 Entrance of a house near 52 Bolshoy Prospect of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Spit of Vasilyevsky Island from Palace Embankment. Saint Petersburg, Russia, December 16, 2016
 Brusnitsyn Mansion at 32 Kozhevennaya Line of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 View of Vasilyevsky Island from a ship heading from Peterhof to Saint Petersburg. Russia, September 20, 2002
 Sredniy Prospect of Vasilyevsky Island, opposite to the subway station. Saint Petersburg, Russia, February 1, 2000
 Rostral Column on a spit of Vasilyevsky Island from Palace Embankment. Saint Petersburg, Russia, December 16, 2016
 City tour near Brusnitsyn Mansion at 32 Kozhevennaya Line of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Young chemical knight mushrooms (Tricholoma stiparophyllum) in Park of Polytechnic Institute. Saint Petersburg, Russia, September 19, 2017
 Brown glass bottle with 1845 Owens Illinois mark on the bottom (brown apothecary medicine bottle, round narrow mouth prescriptions 2 oz, Alton Illinois plant 9, 1939) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, December 20, 2021
 Church of Dormition of the Mother of God (former scating rink) on Leytenanta Shmidta Embankment of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Rostral Column and Stock Exchange on a spit of Vasilyevsky Island from Palace Embankment. Saint Petersburg, Russia, December 16, 2016
 Interior of church of Dormition of the Mother of God (former scating rink) on Leytenanta Shmidta Embankment of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Tour of an insect lab of All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 Entrance of All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, June 4, 2014
 Blooming berberry near All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 Lilac near an insect lab of All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 Hogweed (Heracleum) near an insect lab of All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 Large lilac flowers near All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 Parasitic insects on linden near All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 Close up of lilac flowers near All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 Bolshoi Dom (Russian secret police ChK-GPU-NKVD-KGB-FSK) at Liteynyi Prospect in Saint Petersburg, Russia. Compare its architecture with Federal Building in Dallas. April 21, 1999.
 Great burnet plant (Sanguisorba officinalis, Russian name Krovokhliobka) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Flower of great burnet plant (Sanguisorba officinalis, Russian name Krovokhliobka) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, July 22, 2015
 Water tower (1930-1931) of Red Nailmaker Factory ("Krasny Gvozdilshchik" steel-rolling factory) on Masliany Kanal of Vasilyevsky Island. Saint Petersburg, Russia, May 16, 2015
 Malformed seed head of common dandelion (Taraxanum officinale) damaged by insects, near All-Russian Institute for Plant Protection (VIZR). Pushkin (former Tsarsoe Selo) near Saint Petersburg, Russia, May 25, 2014
 View of Kresty prison from Robespyera Embankment of Neva River. Two buildings have a shape of crosses (kresty mean crosses in Russian). Saint Petersburg, Russia, April 21, 1999.
 Blooming Hepatica (Pechonochnitsa in Russian) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 29, 2017
 Spring snowflakes (Leucojum, Russian name Belotsvetnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
 Blue flowers of Hepatica (Pechonochnitsa in Russian) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 29, 2017
 Blue flowers of Hepatica (Pechonochnitsa in Russian) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
 Spring snowflakes (Leucojum, Russian name Belotsvetnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
 Spring fumewort (Corydalis bulbosa, Russian name Khokhlatka) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
 Carpet of flowers of spring snowflakes (Leucojum, Russian name Belotsvetnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
 Shoots of Veratrum grandiflorum (Russian name Chemeritsa) on alpine hill in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 21, 2017
 Leathery grapefern (moonwort, Sceptridium multifidum, Ophioglossaceae, Russian name Grozdovnik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 21, 2017
 16th century Italian art in Hermitage museum. Saint Petersburg, Russia, July 17, 2004
 Yellow crocus (Crocus flavus, Russian name Shafran) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
 Yellow crocus (Crocus flavus, Russian name Shafran) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 29, 2017
 Wool handspindling at Texas Renaissance Festival. (The chair is labelled by Russian name Stool). Plantersville, Texas, November 4, 2012
 Biology Department of Harvard University, Boston. Massachusetts, August 2, 1999.
 Water drops on yellow crocus (Crocus flavus, Russian name Shafran) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
 Yellow crocus (Crocus flavus, Russian name Shafran) with water drops in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
 Flower buds of yellow crocus (Crocus flavus, Russian name Shafran) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 2, 2017
 Chemical knight mushrooms (Tricholoma stiparophyllum) in Sosnovka Park. Saint Petersburg, Russia, September 16, 2017
 Blooming hellebore Helleborus orientalis subsp. orientalis (H. caucasicus, Russian name Moroznik) in Botanic Gardens of Komarov Botanical Institute. Saint Petersburg, Russia, April 12, 2017
 "Indiana" Entertainment Center opposite to Akademicheskaya subway station (Russians believe that the state of Indiana is still inhabited by American Indians). Saint Petersburg, Russia, April 21, 1999.
 Blue bottle shard (sea glass) on sand on a beach in Solnechnoe, west from Saint Petersburg. Russia, May 20, 2019
 Chemical knight mushrooms (Tricholoma stiparophyllum, T. pseudoalbum) near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016
 Chemical knight mushrooms (Tricholoma stiparophyllum, T. pseudoalbum) near Lisiy Nos, south from Saint Petersburg. Russia, September 3, 2016
 Young chemical knight mushrooms (Tricholoma stiparophyllum) near Kuzmolovo, north from Saint Petersburg. Russia, September 3, 2017
 Chemical knight mushrooms (Tricholoma stiparophyllum, T. pseudoalbum) near Lisiy Nos, west from Saint Petersburg. Russia, October 19, 2016
 Identified and labelled mushrooms at mushroom walk with Gulf States Mycological Society in Watson Rare Native Plant Preserve. Warren, Texas, June 22, 2019
 Mature chemical knight mushrooms (Tricholoma stiparophyllum, T. pseudoalbum)(?) near Lisiy Nos, west from Saint Petersburg. Russia, September 12, 2016
 Kunstkamera Museum on Vasilyevsky Ostrov. Saint Petersburg, Russia, February 1, 2000
 Chemical knight mushrooms (Tricholoma stiparophyllum) in Blizhnie Dubki area near Lisiy Nos, west from Saint Petersburg. Russia, September 26, 2017
 The home. Saint Petersburg, Russia, April 18, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 A.S. in the house in Saint Petersburg, Russia, April 27, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 An apartment in Saint Petersburg, Russia, April 11, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 The home. Saint Petersburg, Russia, April 18, 1999.
 A. I. Sherstyuk s home in Saint Petersburg, Russia, April 21, 1999.
 Watering a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
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