This stairway walk carries you from the top of Capitol Hill down to the edge of Eastlake, before heading back up the hill and over to Portage Bay. As Seattle stairs go, this is the route with the mostest: you'll get a chance to climb the longest stairway in Seattle, the Howe Street stairs, though on this route they don't come all at once - and there's an optional shortcut too. Of course, you can do all 388 steps in one go, if you want to.
Note that the "www" icon above the slideshow indicates extra content that's referred to in the book.
Colonnade Mountain Bike Skills Park, shown in the slideshow above, is a very special park. It's located just below the Blaine and Howe Street stairways and directly under the freeway. You can view a video of Colonnade riders exercising their considerable mountain biking skills here.