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