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  2. United States government safe and vault door specifications

    en.wikipedia.org/wiki/United_States_government...

    A United States Government Class 5-B vault door, which has been tested and approved by the Government under Fed. Spec. AA-D-600D, is ballistic resistant and affords the following security protection: 20 man-hours against surreptitious entry. 30 man-minutes against covert entry. 10 man-minutes against forced entry.

  3. Scala Regia (Vatican) - Wikipedia

    en.wikipedia.org/wiki/Scala_Regia_(Vatican)

    The official entrance to the Apostolic Palace is the Portone di Bronzo at the north side of St Peter's Square. The door opens to the Scala Regia, which leads up to the Sala Regia, which in turn connects to the Sistine Chapel and the Pauline Chapel. Tourists are allowed to climb the staircase to enter the Sala Regia.

  4. Barrel vault - Wikipedia

    en.wikipedia.org/wiki/Barrel_vault

    A barrel vault, also known as a tunnel vault, wagon vault or wagonhead vault, is an architectural element formed by the extrusion of a single curve (or pair of curves, in the case of a pointed barrel vault) along a given distance. The curves are typically circular in shape, lending a semi-cylindrical appearance to the total design.

  5. Vault (architecture) - Wikipedia

    en.wikipedia.org/wiki/Vault_(architecture)

    Gothic rib vault ceiling of the Saint-Séverin church in Paris Interior elevation view of a Gothic cathedral, with rib-vaulted roof highlighted. In architecture, a vault (French voûte, from Italian volta) is a self-supporting arched form, usually of stone or brick, serving to cover a space with a ceiling or roof.

  6. Muqarnas - Wikipedia

    en.wikipedia.org/wiki/Muqarnas

    Muqarnas vault over the entrance of the Sultan Han (1229, Seljuk period) in Turkey In Anatolia , the monuments of the Anatolian Seljuks and other local dynasties made use of muqarnas inside mihrabs (sometimes covered in tilework), on the capitals of columns, in the transitional zones of minaret balconies, and over masonry entrance portals.

  7. Bank vault - Wikipedia

    en.wikipedia.org/wiki/Bank_vault

    The finished vault panels, door, and lock assembly are transported to the bank construction site. The vault manufacturer's workers then place the panels enclosed in steel at the designated spots and weld them together. The vault manufacturer may also supply an alarm system, which is installed at the same time.

  8. Mantrap (access control) - Wikipedia

    en.wikipedia.org/wiki/Mantrap_(access_control)

    Entrance to HM Prison Edinburgh. A mantrap, security mantrap portal, airlock, sally port or access control vestibule is a physical security access control system comprising a small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens.

  9. Orphen: Scion of Sorcery - Wikipedia

    en.wikipedia.org/wiki/Orphen:_Scion_of_Sorcery

    Orphen: Scion of Sorcery, known in Japan as Sorcerous Stabber Orphen (魔術士オーフェン, Majutsushi Ōfen), is an action role-playing video game for the PlayStation 2. The game was developed by SHADE Inc. co-published by Kadokawa Shoten and ESP in Japan, and released abroad by Activision . [ 1 ]