Echothief has a lot great Impulse Responses for reverb. To my delight, he captured some from the filming locations of Battlestar Gallactica, specifically the 'Caprica marketplace' scenes where Gaius and Caprica walk around before the cylon attack. See the 'Academic Quadrangle' and 'Convocation Mall'.
http://www.echothief.com/miscellaneous/
aka Simon Fraser University.