Some organization we've never heard of and could probably care the less about, the American Institute of Architects, put together a list of the Top 25 Bestest Buildings in San Francisco. Look for attendant show on VH-1 featuring snarky comments from Hal Sparks, Ian Michael Black, and Rachel Harris. ...

Tonight is a big-ass party at the Exploratorium, (3601 Lyon St.) for its new exhibition, Liminality: Art on the Threshold. Liminality experiments with the Exploratorium's public space using the metaphor of thresholds as a unifying theme. This exhibition will feature large-scale artworks, created by Seattle and Bay-Area artists, which play with and accentuate the architectural features of the Exploratorium's airplane hangar-like interior. The opening party features one-night-only performances and installations by Project Bandaloop, Kal......

Venerable contemporary art institution, Southern Exposure hosts a big fundraiser tonight - its 7th Annual Monster Drawing Rally, where an impressively large number of local artists take turns drawing things on paper, which are then sold for a measley $50 with all proceeds benefiting Southern Exposure's exhibition and educational programs. Some draw monsters, some draw abstract patterns and shapes, though maybe one can be convinced to do caricatures of Bill and Hilary Clinton like the......

SF Sketchfest presents Paul Reubens in Conversation with Ben Fong-Torres at the Palace of Fine Arts (3301 Lyon St. at Bay) followed by questions from the audience. You can ask Reubens his opinion about Mormons. There's also a post-show reception with Paul Reubens at Amante, with food and beverages provided. (8pm) More Sketchfest tonight at the Eureka Theater (215 Jackson Street at Battery) with Killing My Lobster, the SF sketch comedy group and film production......