San Francisco' s widest street, Van Ness Avenue, runs straight down the middle of Civic Center, a Beaux Arts architectural wonder where The City's symphony, opera and ballet dazzle audiences. One of the area's crown jewels, the War Memorial Opera House, is one of the world's greatest opera houses. This gem was designed by Arthur Brown, Jr., who also designed the newly renovated City Hall, and Coit Tower. The Asian Art Museum is one of the largest museums in the world devoted exclusively to Asian art with a collection comprising nearly 15,000 objects spanning 6,000 years of history. The museum reopened in March 2003 at its new, expanded Civic Center facility. The main library at Grove and McAllister Streets is one of the greatest public learning centers in the country and one of the most technologically advanced in the world. Over one million books, 400 electronic work stations, a children's discovery center, and special rooms on African American, Chinese, Filipino American, gay and lesbian works surround a light-filled atrium. One of The City's major convention venues, Bill Graham Civic Auditorium, hosts numerous concerts and public events throughout the year.