July 10, 2009: Union Square is a 2.6 acres plaza bordered by Geary, Powell, Post and Stockton Street in San Francisco. It also refers to the central shopping, hotel, and theater district that surrounds the plaza for several blocks. The name "Union Square" stems from the fact that the area was once used for rallies and support for the Union Army during the Civil War. Today, this one-block plaza and nearby area is one of the largest collection of department stores, upscale boutiques, tourist trinket shops, art galleries, and salons in the Western United States, which continue to make Union Square a major tourist draw, a vital, cosmopolitan place in downtown San Francisco, and one of the world's premier shopping districts. Grand hotels and small inns, as well as repertory, off-Broadway and single-act theaters also contribute to the area's dynamic, 24-hour character.