這是剪貼畫轉換和分離文檔這麼說的因為已發佈公共域和其從美國航空航天局，美國的政府機構。該出版物被稱為"腦內空間："HTTP://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/The.Brain.in.Space.html 美國國家航空航天局 空間 科學 58294main_The.Brain.in.Space-頁面-98-以斯帖-樓梯
Metaphysical vector illustration of a spiral staircase leading to a door. Clear sky with soft clouds and bright sun. Artistic vector graphics to use in your posters, greeting cards, motivational illustrations and creative clothing prints. Free vector fantasy illustration for heaven and sky projects 雲 太陽 幀 通往天國的階梯
This is clipart converted and broken apart that has been released into the public domain because the document says so, and its from NASA, a USA government agency. The publication is called "The Brain in Space:" http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/The.Brain.in.Space.html 天文學 腦 轉換 58294main_The.Brain.in.Space 頁 98 以斯帖記梯
Sign to mark your stairwell with silhouette of a spiral staircase in art nouveau style, part of a series 新藝術 corscrew 裝修 樓梯門標誌
Metaphysical vector illustration of a spiral staircase leading to a door. Clear sky with soft clouds and bright sun. Artistic vector graphics to use in your posters, greeting cards, motivational illustrations and creative clothing prints. Free vector fantasy illustration for heaven and sky projects 雲 太陽 幀 Stairway To Heaven
形而上學的向量圖的一扇門通往一個螺旋樓梯。晴朗的天空，用柔軟的雲朵和燦爛的陽光。藝術的向量圖形，以使用在你的海報、 賀卡、 勵志插圖和創意服裝列印。天堂和天空專案的免費向量奇幻插畫 雲 太陽 幀 通往天國的階梯
