A last minute heads up for two events tonight: The second of two public consultationson the future of Block 51 - the site of the Vancouver Art Gallery - is taking place at the gallery. Discussions will centre around the significance of the North Plaza and the 800-block of Robson Street. The plaza is slated for redevelopment and the city is considering closing down the block of Robson Street permanently to vehicle traffic, in response to the success of the Olympics and past closures like Pop Rocks and Picnurbia. Also happening tonight: a talk by Vancouver writer Lindsay Brown on the city's 1976 UN Habitat Forum. Brown is currently finishing up a book on the event and will explore some of that history, along with archival photos, at the Goldcorp Centre For the Arts.