Today, San Francisco is one of the top tourist destinations in the world, ranking 35th out of the 100 most visited cities worldwide, and is renowned for its cool summers, fog, steep rolling hills, eclectic mix of architecture, and landmarks including the Golden Gate Bridge, cable cars, Alcatraz Island and its former prison, and its Chinatown. The city is also a primary banking and finance center, and more than 30 international financial institutions are based there, helping to make San Francisco rank 18th in the world's top producing cities, and 12th place in the top twenty global financial centers. * parking in sf Fort manson has free parking 4 hours on week day.