To celebrate the 100th anniversary of nothing, the artists who run Crawl Space asked two museum curators (Liz Brown and Bruce Grenville) to create a group show from a nationwide call for artist submissions. The result is five mini solo shows: tracings on the wall of the wall's serious imperfections by Janet Lee of Redmond; Portlander Storm Tharp's inky portraits in the style of mid-century celebrity photographer John Deakins; German-born Christoph Gielen's haunting photographs of buildings as social beings; Mike Calway-Fagen's documentations of unexplained performances; and a suite of sweet drawings of a daddy longlegs losing one leg at a time, by Justin Gibbens of Seattle. (Crawl Space, 504 E Denny Way, 322-5752. Noon—5 pm, free.)