The Metreon is a shopping center located in downtown San Francisco at the corner of 4th Street and Mission Street. It is a four-story 350,000 square foot (33,000 m²) building built over the corner of the underground Moscone Center convention center. Metreon opened on June 16, 1999, as the first of a proposed chain of Sony "urban entertainment centers", aggregating dining, gaming, music, exhibitions, shopping, and movies.