While the hills make for a beautiful city, they steep grades can be both scary and thrilling to drive. Not that I personally drove. I guess I should more accurately say it was both scary and thrilling to be a passenger. I probably closed my eyes every time we reached the top of a hill, for fear that we'd drive too far over the peak and end up in the middle of an intersection. :)
And, can you imagine, there were guys who would skateboard down these hills. They would be going so fast, and there's no way they could have stopped if a car pulled out in front of them! But every time we saw a skateboarder get to the bottom, he would have a huge smile on his face as he looked back at all the tourists lining the street with their mouths wide open in amazement (or fear?).
We tend to wander a lot when we travel... just start in one neighborhood and walk until we're tired. San Francisco was a great city to do this in because every street was adorable, which kept things interesting. Here's a look at some of the homes and hills of San Francisco.
See more San Francisco posts here and more California posts here.