Historical secret organization headquarters

>>3072711
Massada.

File: Cour_des_miracles.jpg (99KB, 758x565px) Image search: [Google]

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Maybe not headquarters per se

File: Checkpoint_in_closed_city_Zheleznogorsk,_Krasnoyarsk_Krai.jpg (4MB, 3264x2448px) Image search: [Google]

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>>3072760
>Massada.
jew fortress non secret to anyone
>>3072771
>Cour des miracles
Literally just an uppity slum.

Bitches pls. Russia had fucking whole cities hidden https://en.wikipedia.org/wiki/Closed_city

>>3072848
>jew fortress non secret to anyone

>other examples exist of historical secret/criminal/heretical/religious organizations
And Alamut wasn't a secret either, the Ismailis took control of an existing fortress obviously.

File: tomar castle.jpg (411KB, 1600x900px) Image search: [Google]

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>>3072711
>Castle of Tomar, Portugal, founded by the Templar Order in 1160 and besieged by the Almohads in 1190. After the dissolution of the Templars, Tomar became the headquarters of their sucessors, the Order of Christ, responsible for starting the Discovery Age.

>>3072711
Isnt there any cold war abandoned secret bases?

>>3072711
>no grove of the Druids
>no early Masonic lodges
>no Order temples of the holy Land
>not even a Monastery

/x/ pantses you guys in the schoolyard on anything that's not an out-of-date /int/ meme or literally Hitler.

>>3072883
I have spoken too soon. You are redeemed. The rest must make ten posts on an obscure post-colonial African war, while chanting "Holy. Roman. Empire".