Berlinmuren
Tower_of_London
Den_kinesiske_mur
Akershus_slott_og_festning
Carcassonne
Borg
Brandenburger_Tor
Betlehem
Akropolis_(Athen)
Alhambra
Beleiringen_av_Leningrad
Windsor_Castle
Kreml_(Moskva)
Bygdeborg
Hadrians_mur
Fredriksten_festning
Bastillen
Kronborg_slott
Førerbunkeren
Beleiring
Edinburgh_Castle
Bergenhus_festning
Homs
Stormingen_av_Bastillen
Alcatraz
Garnison
Bunker_(bygning)
Castel_Sant’Angelo
Citadell
Wartburg
Kreml
Maginotlinjen
Haakonsvern_orlogsstasjon
Vollgrav
Wolfsschanze
Masada
Kristiansten_festning
Bastion
Kaserne
Atlanterhavsvollen
Militærbase
Danevirke
Sveaborg
Forsvarsmur
Port
Karljohansvern
Limes
Tilfluktsrom
Vardøhus_festning
Caernarfon_Castle
Alamut
Kystfort
Kasematt
Den_tyske_ordens_slott_i_Malbork
Skyttergrav
Gibraltars_historie
Dublin_Castle
Borgen_i_Praha
Kongsvinger_festning
Conwy_Castle
Agra_fort
Trondenes_fort
Motte-and-bailey
Den_indre_tyske_grense
Palisade
Sjlisselburg
Den_antoninske_mur
Fort_Knox
Vestvollen
Peter-Paulus-festningen
Skanse
Erkebispegården_i_Trondheim
Krak_des_Chevaliers
Stirling_Castle
Solovkiklosteret
West_Point_(New_York)
Kastellet_(København)
Malatya
Trelleborg_(borganlegg)
Bohus_fästning
Parapet
Vindebro
Castrum
Staraja_Ladoga
Beleiringen_av_Sarajevo
Kalmar_slott
Austrått_fort
Christiansborg_(fort)
Despotatet_Morea
Redutt
Muskauparken
Drobeta_Turnu_Severin
Byport
Himejiborgen
Belémtårnet
Borgtårn
Nusaybin
Jomsborg
Den_aurelianske_mur
Oppidum
Royal_Engineers
Durham_Castle
Tunsberghus
Serviusmuren
Fangehull
Dover_Castle
Fjell_festning
Bosra
Mannerheimlinjen
Beaumaris_Castle
Ringmur
Harlech_Castle
Bran_slott
Hohenzollern_(slott)
Kongeslottet_i_Warszawa
Linlithgow_Palace
Kastell
Dry_Tortugas_nasjonalpark
Fort_Sumter
Shanhaiguan
Kasbah
Castle_of_Mey
St_Michael’s_Mount
Gustavlinjen
Krenelering
London_Wall
Palazzo_Madama_i_Torino
Dura_Europos
Cardiff_Castle
Warwick_Castle
Canossa
Egeskov_slott
Beleiringen_av_Sevastopol
Falkland_Palace
Château_d’If
Battery_Park
Bamburgh_Castle
Turell
Dzong
Westerplatte
Sinjar
Dunnottar_Castle
Festung_Norwegen
Koldinghus
Aggersborg
Glacis
Christiansholm_festning
Beleiringen_av_Antiokia
Hindenburglinjen
Offas_dike
Peñón_de_Vélez_de_la_Gomera
Naarden
Palmanova
Alnwick_Castle
Borggård
Château_de_Chenonceau
Malmøhus
Fort_Ticonderoga
Ørje-fortene
Dunstable
Crannóg
Fredrikstad_festning
Kvarven_fort
Sønderborg_slott
Bodiam_Castle
Fyrkat
Ait-Ben-Haddou
Hwaseong_festning
Glamis_Castle
Zarajsk
Älvsborg_festning
Fyrstepalasset_i_Monaco
Königstein_festning
Fort_Leavenworth
Fasil_Ghebbi
Ailsa_Craig
Sperreballong
Qal’at_Salah_El-Din
Syzran
Regelbau
Kernen
Hermannsfeste
Handelsfort_i_Ghana
Qianmen
Eilean_Donan
Fort_Boyard
Alcázar_av_Segovia
Quseir_Amra
Riga_festning
Ravelin
Bishopsgate
Dumbarton_Castle
Vadstena_slott
Old_Sarum
Carlstens_festning
Chillon_slott
Førerhovedkvarter
Ehrenbreitstein
Château_Gaillard
Gvardejsk
Olofsborg
De_lange_murene
Chapultepec-slottet
Akrokorint
Herodium
Spisskyborgen
Tunnelene_i_Cu_Chi
Golconda
Fort_Jesus
Nyköpingshus
Det_hvite_tårnet
Japanske_borger
Läckö_slott
Kuressaare_slott
Møkkaporten
Colditz_slott
Doune_Castle
Tavastehus_slott
Ludlow_Castle
York_Castle
Nyenskans
Mutianyu
Sundås_batteri
Castrum_Danorum
Fort_Eben-Emael
Borgen_Liechtenstein
Cape_Coast_Castle
Nonnebakken
Peel_Castle
Neuf-Brisach
Schloss_Vaduz
Vannborg
Visby_ringmur
Martellotårn
Fort_Amsterdam_(Curaçao)
Flaktårn
Norske_Løve_(fort)
Nottingham_Castle
Adlerhorst
Fort_Monroe
Fredriksberg_fort
Hohensalzburg
Christiansfjeld_festning
Vatneleiren
Gabioner
Loch_Leven_Castle
Vilnius_slottskompleks
Fort_McHenry
Beaufortborgen_(Libanon)
Faskin
Fredriksholm_festning
Ksour
Dansborg
Fotheringhay_Castle
Førerhovedkvarteret_Werwolf_(
Presidio_of_San_Francisco
Winchester_Castle
Skytsborg
Blaker_skanse
Staverns_Fort
Castle_Rushen
Corregidor
Chepstow_Castle
Bodens_fästning
Jagdschloss_Glienicke
Vaxholms_fästning
Fort_St._Elmo
Forhugning
Ringborg
Raglan_Castle
Golubac_festning
Felsennest
Takufortene
Lindisfarne_Castle
Machaerus
Veste_Coburg
Burh
Kim_Il-sung_militæruniversitet
Utenverk
Fredensborg_(fort)
Beijings_bymur
Norwich_Castle
Porkhov
Réduit
Charlottenborg
Civitella_in_Val_di_Chiana
Castell_de_Montjuïc
Castillo_de_San_Marcos
Newgate
Ivangorod_festning
Vordingborg_slottsruin
Ai-Khanoum
Kaponnier
Korela_festning
Fort_Duquesne
Den_saksiske_kysten
Alanya_Kalesi
Ordensburg
Dun_(byggverk)
Lagmannsholmen
Trekroner_fort
Simatai
Bunratty_Castle
Pillbox
Copacabana-fortet
Landskrona_slott
The_Needles
Fort_Zeelandia_(Formosa)
Christiansø_festning
Rothesay_Castle
Jiayuguan_(pass)
Fort_Prinsensten
Château_du_Haut-Kœnigsbourg
Eildon_Hill
Posad
Basmo_festning
Housesteads_romerske_festning
Bala_Hissar
Château_de_Chalus-Chabrol
Festningen_Louisbourg
Portfestningen_i_Warszawa
Meløyvær_fort
Eketorp
Raby_Castle
Karlsborgs_festning
Wolfsschlucht_I
Tenalje
Schloss_Sonnenstein
Narikala
Bosjökloster
Middleham_Castle
Castel_del_Monte
Flat_Holm
Ludgate
Hedingham_Castle
Kildrummy_Castle
Det_pommerske_hertugslottet_i_Szczecin
Fort_St._Angelo
Brodick_Castle
McChord_Air_Force_Base
Turnberry_Castle
Castillo_San_Felipe_del_Morro
Sandal_Castle
Slains_Castle
James_av_St._George
Dyngehus
Makurdi
Fort_Dearborn
Rozafa
Chester_Castle
Baynard’s_Castle
Burg_Frankenstein
Dunstanburgh_Castle
Qasr_al-Hayr_al-Gharbi
Christian_IVs_bryggerhus
Tattershall_Castle
Leineslottet
Yedikule
Aldersgate
Ulpia_Traiana_Sarmizegetusa
Borgeby
Pevensey_Castle
Halmyris
Guédelon
Dorchester-on-Thames
Dunadd
Lewes_Castle
Matsumotoborgen
Tirol_(slott)
Xi’ans_befestninger
Devizes_Castle
Dunstaffnage_Castle
Fort_Astoria
Moorgate
KW-linjen
Smederevo_festning
Fort_Stanwix
Rutupiæ
Deal_Castle
Fort_Carré
Koporje
Carrawburgh
Kantara-festningen
Nimrodsborgen
Cripplegate
Jenikale
Roxburgh_Castle
Vestvolden
Anaklia
Kongensten_(fort)
Bolton_Castle
Trezzo_sull’Adda
Peveril_Castle
Bolingbroke_Castle
Fort_Manoel
Auduns_borg
Woburn_Sands
Kavaler_(befestning)
Citadelle_de_Besançon
Beeston_Castle
Dwejra
Chirk_Castle
Tynemouth_Castle
Łańcut-slottet
Farleigh_Hungerford_Castle
Trifels-festningen
Fort_Rupert
Kendal_Castle
Burg_Eltz
Fort_Michilimackinac
Ujazdów-slottet
Barnard_Castle_(slott)
Slottet_i_Montsoreau
Götavirke
Rhodes’_festningsverker
Rhuddlan_Castle
Månstorp
Książ
Svartholm_festning
Olsborg_slott
Ukhaidir
Hastings_Castle
Bymurene_i_Warszawa
Castello_Barbarossa
Fort_St._Michael
Qasr_al-Hayr_al-Sharqi
Fort_Clark
Gusuku
Fort_Huachuca
Fortaleza_da_Guia
Torres-linjene
Toprakkale
Porta_Maggiore
Varberg_slott
Tsaparang
Forte_di_Fenestrelle
Château_de_Vincennes
Bent’s_Fort
Fort_Washakie
Celje_slott
Gin_Drinkers_Line
Stjernefestning
Střekov_(borg)
Grebbelinjen
Waterfort
Fossebre
Fallgitter
Fort_Mackinac
Fort_Mason
Cilgerran_Castle
Oxwich_Castle
Malaya_Zemlya
Strata_Diocletiana
Fort_Crown_Point
Dinefwr_Castle
Southsea_Castle
Vyšehrad_(slott)
Castra_Praetoria
Brod_festning
Royal_Observer_Corps
Habsburg_(borg)
Báthoryborgen
Christianspris
Knaresborough_Castle
Quadrilatero
Fort_Orléans
Evenburg
Framlingham_Castle
Forsvarsministeriets_Ejendomsstyrelse
Romerrikets_grenser_–_Nedre_Germanias_limes
Château_de_Taillebourg
Devín_borg
Donaulimes
Scotney_Castle
Steep_Holm
Birdoswald
Wolf’s_Castle
Tickhill-festningen
Hijiborgen
Melilla_La_Vieja
Kontregarde
Chankillo
Riccarton
Špilberk_festning
Château_de_Brie-Comte-Robert
Yongdingmen
Buda-slottet
Taragarh_fort
Raigad_festning
Clun_Castle
Hardings_batteri
De_theodosianske_murer
Heidelberg_slottsruin
Nagoya-jō
Csesznek
Tybee_Island_(Georgia)
Dumfries_Castle
Marinekazerne_Suffisant
Fort_Pilar
Diyarbakırfestningene
Ayaborgen
Burg_Frauenstein
Santa_Catarina_(fort)
Mong_Há
Festningen_i_Guimarães
Gorgans_store_mur
Montfichet’s_Castle
Tegart-fort
Porttårn
Fort_Totten
De_Haar_slott
Slottet_i_Gola_Dzierżoniowska
South_Channel_Fort
Malahide_Castle
Fortaleza_do_Monte
Porta_Settimiana
Fort_Nepean
Kincardine_Castle
Bastamborgen
Wats_dike
Litice_(borg)
Bridgnorth_Castle
Tegarts_mur
Worli_Fort
Howth_Castle
Temp_(flybase)
Carlstad
Pen_Dinas
Long_Mountain
Kakunodateborgen
Operasjon_Tracer
Fort_Saint-Frédéric
Camp_Fistclench
Dniprolinjen
Cluilergrøften
Burg_Bilstein_(Lennestadt)
Kongeslottet_på_Wawel
Jesuit_Hill_Battery
Fort_Carillon