宇宙船地球号
The structure is similar in texture to the United States pavilion from Expo 67 in Montreal but, unlike that structure, Spaceship Earth is a complete sphere, supported by three pairs of legs. The architectural design was conceived by Wallace Floyd Design Group.The structural designs of both Expo 67 and Spaceship Earth were completed by Simpson Gumpertz &amp; Heger Inc. of Boston, Massachusetts.