Built to accommodate Seattle's 1962 World's Fair, the Seattle Center has undergone many transformations over the past 50 years and currently exists both as a public park and urban fairground as well as a hub for several arts organizations in lower Queen Anne. SIFF, the Seattle Opera, the Pacific Northwest Ballet, Seattle Repertory Theater, the Vera Project, the Seattle Children's Theater, the Pacific Science Center, the EMP and Sci-fi Museum, the Chihuly Garden and Glass all do their thing on or adjacent to Seattle Center, and the list of festivals and conventions that set up shop here is probably even longer.