Celebrity couple Brad Pitt and Angelina Jolie paid a visit to Panama City on Friday (29DEC06) where they spent time shopping for souvenirs and touring the Panama Canal. On Thursday (28DEC06), the pair dropped in on a former US military base and the construction site of Panama's new Biodiversity Museum, which will trace the country's natural history and include a botanical garden. Residents were shocked to see the high-profile couple, with one amazed citizen shouting, "Are you Brad Pitt?" According to the newspaper Panama America, the actor smiled and replied, "Sometimes." The couple were touring the museum, which was designed by Los Angeles-based architect FRANK GEHRY, a close friend of Pitt's. The Fight Club star, who is an architecture buff, is collaborating with Gehry on a seaside development in Britain.