asimo acre agriculture aichi aichi prefecture annie oakley arc de triomphe area atomium audio-animatronics australia austria automobile barcelona belgian franc belgium braille bridge pavilion brisbane brussels bureau of international expositions calendar date canada canadian dollar centennial arboretum centennial exposition century century of progress chicago colonial exhibition colonisation communication country culture daejeon daejeon museum of art education eiffel tower electric vehicle escalator european colonization of the americas exploratorium ferris wheel film fluorescent lamp france french revolution french franc garden palace germany ghent haiti hannover principles hanover hectare hemisfair arena human human zoo imax industry institute of texan cultures italy japan lisbon lisbon oceanarium london louisiana purchase exposition magna carta manufacturing melbourne midway plaisance milan millions montreal montreal metro moon rock my neighbor totoro nature new orleans new york new york city osaka palace of fine arts panama canal paris philadelphia port-au-prince portugal profit rotunde royal exhibition building saint louis art museum san antonio san francisco science world seattle seattle center seattle center monorail seville shanghai sky ride south korea space age space needle spain statue of liberty sunsphere sustainable development sydney technology telephone the crystal palace the great exhibition tower of the americas tower of the sun tram transport unisphere united kingdom united states united states declaration of independence united states dollar vancouver vienna vulcan statue yeosu zaragoza