Betlehem
Berlinmuren
Akershus_festning
Tower_of_London
Homs
Den_kinesiske_muren
Borg
Eilean_Donan
Bygdeborg
Bymur
Garnison
Hadrianmuren
Kreml_i_Moskva
Akropolis_i_Aten
Kreml
Carcassonne
Alhambra
Bastillen
Drobeta-Turnu_Severin
Citadell
Den_antoninske_muren
Anleggsarbeid
Bosra
Kronborg_slott
Fredriksten
Sveaborg
Nusaybin
Kaserne
Kringsetjinga_av_Leningrad
Sjlisselburg
Bass_Rock
Atlanterhavsmuren
Ailsa_Craig
Krak_des_Chevaliers
Malatya
Staraja_Ladoga
Pa
Blokkhus
Zarajsk
Bergenhus_festning
Château_de_Blois
Stjernefestning
Haakonsvern_Orlogsstasjon
Båhus_festning
Gvardejsk
Castrum_Danorum
Shanhaiguan
Peñón_de_Vélez_de_la_Gomera
Salah_Ed-Din-borga
Olofsborg
Syzran
Lahore_festning
Mannerheimlinja
Porkhov
Kristiansten_festning
Festninga_Louisbourg
London_Wall
Westerplatte
Sinjar
Kystfort
Posad
Dunstable
Dunnottar_Castle
Parapet
Koróni
Martellotårn
Karljohansvern
Akrokorint
Csesznek
The_Needles
Fjell_festning
Festung_Norwegen
Vollgrav
Solovkiklosteret
Fort_McHenry
Palamídi
St_Michael's_Mount
Flat_Holm
Nya_Elfsborg
Cramond_Island
Palisade
Nagoya-jō
Daugavgrīva
Maginotlina
Clifford's_Tower
Fort_Carillon
Kandára-festninga
Stirling_Castle
Făgăraș
Karýtena
Ringmur
Brean_Down
Dublin_Castle
Bishop's_Castle
Beeston_Castle
Koznik
Korela_festning
Toprakkale
Inchgarvie
Vindolanda
Steep_Holm
Drake's_Island
Hindenburglina
Peter-Paulus-festningen
Cleeve_Hill
Walbury_Hill
Hwaseong
Rosyth_Castle
Dyngehus_borg
Vyšehrad
Burry_Holms
Krenelering
Fanári_i_Kardítsa
Ivangorod_festning
Berry_Head
Blaker_skanse
Pen_Dinas
Peel-tårn
Maiden_Castle_i_Dorset
Borgholms_slott
Îles_Saint-Marcouf
Festninga_i_Mainz
Graviá
Bulbarrow_Hill
Hardknott_Roman_Fort
Ludgate
Thorn_Island
Magnis_i_Carvoran
Cilurnum
Eildon_Hill
Kinnaird_Head
Borough_Hill
Dodman_Point
Milecastle
Brent_Tor
Long_Mountain_i_Powys
Whitsand_Bay
Uqair
Little_Cumbrae_Castle
Brown_Clee_Hill
Bolt_Tail
Foel_Fenlli
Caer_Caradoc
High_Peak_i_Devon
The_Rumps
Totternhoe_Knolls
Gurnard's_Head
Beacon_Hill_i_Leicestershire
Wandlebury_Hill
Sutton_Bank
Beacon_Hill_i_Burghclere_i_Hampshire
Cadbury_Hill
Bredon_Hill