 Fort Alexander (Chumnoy). Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Fort Peter. Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 View of Kronstadt from Fort Constantine. Saint Petersburg, Russia, June 21, 2011
 Stone stairs of Gril Platz in Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 View of a lighthouse from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 View of Fort Alexander (Plague) from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Ruins of Fort Pavel I (Risbank), view from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 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
 Navigation sign north from Fort of Kronshlot. Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Fort Pavel I (Risbank) with Lomonosov in background, view from Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Lighthouse of Fort of Kronshlot in Gulf of Finland. Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Gun battery "Kane" (1897) in Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 Lighthouse south-west from Fort Menshikov. Kronstadt (part of Saint Petersburg), Russia, July 11, 2009
 Powder bunker in Fort Constantine, Kronstadt. Saint Petersburg, Russia, June 21, 2011
 View of Fort Rif from a rocky beach in West Kotlin Nature Reserve in Kronstadt. Saint Petersburg, Russia, September 2, 2018
 A museum exhibit inside the historical Coastal Fort "Reef" The scene reconstructs a Soviet-era military office or command post (likely a clerk s or commander s office) located within one of the fort s fortified casemates. Kronstadt, Saint Petersburg, Russia, September 27, 2025
 Interior of a shaft for a "disappearing" Moncrieff gun within the fort s underground galleries in the historical Coastal Fort "Reef". The large hole in the ceiling "Oculus" is not a window or a skylight, but a gun pit. The rough, stained concrete walls and heavy metal brackets on the walls are remnants of the lifting mechanism and the platforms where the gun crew would operate. Kronstadt, Russia, September 27, 2025
 A view from the gun deck of the Moncrieff gun pit, with the "shaft" construction visible as a two-level system: the Gun Deck (Top), the Crew Floor (Bottom), Mechanism Traces. Coastal Fort "Reef", Kronstadt, Russia, September 27, 2025
 Remains of the Engineer Department s Experimental Battery, also known as the "Engineer Polygon". These structures were bombarded to test the resistance of Portland cement. Coastal Fort "Reef", Kronstadt, Russia, September 27, 2025
 Armored cupola of an experimental observation post, built in 1891. This was part of the "Engineer Polygon" tests to see how well concrete structures combined with armor could withstand enemy fire. Coastal Fort "Reef", Kronstadt, Russia, September 27, 2025
 Large brick building of the Officer s Building (Officers Assembly) of the Fort Shanetz. Kronstadt, Russia, September 27, 2025
 Ruined brick tower on the beach, which is the remains of a searchlight station (prozhektornaya stantsiya) belonging to Fort Shanetz. Kronstadt, Russia, September 27, 2025
 Remnants of an engineering testing structure or "polygon" located on the shoreline near Fort Reef and Fort Shanetz. Kronstadt, Russia, September 27, 2025
 Rangefinder (dalnomernyi) pavilion belonging to one of the coastal batteries of the Kronstadt fortress, situated near Fort Shanetz. Kronstadt, Russia, September 27, 2025
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