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Close up lookout window of a British WW2 concrete pillbox / bunker.
Rifugio antiaereo a Terni
The embrasure of the old castle is barred with an iron grate in a thick stone wall
Old red brick wall with a small window on an autumn day.
Ruins of the enormous military strengthening of the times World War II
Underground old sewerage treatment plant tunel of the 19th century
Woman Backpacker Hiker Discovering Tunnels and Bunkers of World War One in Valley of Tolminka in Slovenia
Fort-Liberté / Fòlibète, Nord-Est Department, Haiti: storage room at Fort Dauphin aka Fort Saint-Joseph - 18th century French colonial fortress - located at the start of the Grande rue (Avenue Sténi Vincent), at Pointe de Roche, the central axis of the city, completed in 1735 - the fort is abandoned, ruined and neglected, access is free.
Green leaves in a hole in the wall
Scala su in rifugio della seconda guerra mondiale a Terni
A gloomy dark underground corridor, sealed through a hole in the ceiling at Fort Pospelova on the Russian island in Vladivostok.
Red brick wall with a small window in Kaliningrad Region, Russia.
Bunker of World War II. embrasure
Business failure.
Air raid shelter on ex RAF Riccall airfield used to train bomber air crews
Surrey countryside WW2 inland defence line near Guildford Surrey England Europe
Tunnels and catacombs in the Petrovaradin fortress, Serbia
Bunker antiaereo di Nera Montoro
Siedliska, Subcarpathian, Poland - 25 November 2023: Przemyśl Fortress, Fort GHW I „Salis-Soglio” - interior of the residential casemate with a round window for 10 soldiers
Blarney Castle, medieval stronghold, near Cork, Ireland.
Outdoor buildings and architectural features
Military man standing in the tunnel alone
Close up of the Great Wall outfall
Berry Head Historic Military Fortification ruins built between 1794 and 1804 on the Devon coast. Now open public space.
Blockhause 13. Big búnker of The Spanish Civil War (1936-1939) in Colmenar del Arroyo Madrid
Rifugio antiaereo di Terni
Loophole in a bunker
Resten van een Romeins badhuis in de Duitse stad Trier. Trier is een stad gelegen in het westen van Duitsland, in de deelstaat Rijnland-Palts. Het staat bekend als een van de oudste steden van Duitsland, met een geschiedenis die teruggaat tot de Romeinse tijd. Trier werd gesticht door de Romeinen rond 16 voor Christus en werd bekend als \
Concrete loophole of WWII Vickers Machine Gun Post.
Old Bunker, Basement
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