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  2. Palazzo Contarini del Bovolo - Wikipedia

    en.wikipedia.org/wiki/Palazzo_Contarini_del_Bovolo

    View of the famous staircase. The Palazzo Contarini del Bovolo (also called the Palazzo Contarini Minelli dal Bovolo) is a small palazzo in Venice, Italy, best known for its external multi-arch spiral staircase known as the Scala Contarini del Bovolo (literally, "of the snail").

  3. Stairs - Wikipedia

    en.wikipedia.org/wiki/Stairs

    A staircase or stairway is one or more flights of stairs leading from one floor to another, and includes landings, newel posts, handrails, balustrades, and additional parts. [4] In buildings, stairs is a term applied to a complete flight of steps between two floors. A stair flight is a run of stairs or steps

  4. List of ancient spiral stairs - Wikipedia

    en.wikipedia.org/wiki/List_of_ancient_spiral_stairs

    The spiral stair is a type of stairway which, due to its complex helical structure, has been introduced relatively late into architecture. Although the oldest example dates back to the 5th century BC, [ 1 ] it was only in the wake of the influential design of the Trajan's Column that this space-saving new type permanently caught hold in ancient ...

  5. Make a spiral staircase by yourself in your backyard - AOL

    www.aol.com/spiral-staircase-yourself-backyard...

    This spiral staircase comes in a box, and you can put it together by yourself. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  6. Hyperbolic spiral - Wikipedia

    en.wikipedia.org/wiki/Hyperbolic_spiral

    A spiral staircase in the Cathedral of St. John the Divine.Several helical curves in the staircase project to hyperbolic spirals in its photograph.. A hyperbolic spiral is a type of spiral with a pitch angle that increases with distance from its center, unlike the constant angles of logarithmic spirals or decreasing angles of Archimedean spirals.

  7. Timeline of historic inventions - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_historic...

    480 BC: Spiral stairs (Temple A) in Selinunte, Sicily (see also List of ancient spiral stairs) [240] [241] By 407 BC: Early descriptions of what may be a Wheelbarrow in Greece. [242] First actual depiction of one (tomb mural) shows up in China in 118 AD. [243] By 400 BC: Camera obscura described by Mo-tzu (or Mozi) in China. [244]

  8. Staircase tower - Wikipedia

    en.wikipedia.org/wiki/Staircase_tower

    Staircase tower with no external door on the church of Saint-Pierre-ès-Liens in Rampoux (), France. A staircase tower or stair tower (German: Treppenturm, also Stiegenturm or Wendelstein) is a tower-like wing of a building with a circular or polygonal plan that contains a stairwell, usually a helical staircase.

  9. Penrose stairs - Wikipedia

    en.wikipedia.org/wiki/Penrose_stairs

    In the real world, the hero should always be in front of the villain throughout this chase. However, in the case of the Penrose stairs the hero descends another flight of stairs to catch up to the antagonist and catch him unaware. [14] The cover of the 2011 album Angles by American rock band The Strokes depicts a complex set of Penrose stairs.