On June 1, 1909, the Alaska-Yukon-Pacific Exposition (catchy name!) had its grand opening, becoming Washington's first world's fair. An upside-down house and natives of the Philippines were among the "exhibits." A whole bunch of events will mark the 100th anniversary, including Seattle artists Dawn Cerny and Patrick Holderfield remixing it all up with flags and posters that look back with an eye to what's better and what's worse since 1909. What's worse: no more upside-down house. (Gallery4Culture, 101 Prefontaine Pl S, 269-8674. 9 am–5 pm, free.)