San Francisco is where denim jeans were invented, as well as the Chinese fortune cookie.
The geographical area of San Francisco is 1365 sq km, ranked number 45 largest in the world.
About 4m people live in San Francisco. It's the number 60 most populous city in the world.
A standard ticket for San Francisco Municipal Transportation Agency (SFMTA) costs $2 and is good for 1.5 hr.
Campers and hostellers can have a great time in San Francisco on $50 to $70 per day.
Travelling couples can enjoy San Francisco on about $100 to $250 per day.
In the mood for a pint? A half litre of beer in San Francisco costs about $4.70.
It usually rains 62 days per year in San Francisco.
Thirsty? A 0.33 litre of bottled water in San Francisco will cost you $1.60.
The average daytime temperature in San Francisco is 9°C in January and 17°C in July.
Passing clouds. Cool.