This bonus episode of 99% Invisible is brought to you by Get Your Guide.

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Now, let's get out on the street and tell us some stories.

This is 99% invisible.

I'm Roman Mars in San Francisco.

Since Get Your Guide offers adventures and tours all around the world, we decided we would release a bonus episode with our own guide to my favorite stories about San Francisco,

the city in my backyard. But you don't have to be walking

around with me to experience it. You can join me just by listening. I'd like to start with the

most famous building in the city of San Francisco, even though it's no longer the lone tower

dominating the skyline. And that is the Transamerica pyramid,

designed by L.A. architect William Pereira. It's about 850 feet tall. It's a skinny,

four-sided pyramid with two wings poking out. They look like ears to me. And those wings

accommodate the elevator shaft on one side

...