Union Square is one of the most popular sites in downtown San Francisco. The square is an important commercial hub with many hotels and upscale stores located in the surrounding area. Here you’ll find department stores like Macy’s and Nieman Marcus as well as luxury brands like Louis Vuitton, Bulgari, Dior, etc. At the time I visited, Union Square was the site of a huge cultural event organized by San Francisco’s large Taiwanese community.