About 721 Geary Apartments 721 Geary, Downtown is a crowd pleaser. Retail hustle and business bustle keep Union Square and the Financial District buzzing with activity all day. By night, the heart of the city is single and ready to mingle. Endless entertainment options make it easy to fall for the vibrant urban vibe. World-class restaurants, trendsetting bars, and thumping music venues keep ‘em coming back for more.