Well better to head towards San Diego and check out the zoo than stay in stuffy old Frisco.
http://maps.google.com/maps?q=2601+Elliott+Avenue+Seattle
Nothing particularly interesting about that building, but the area has alot of fun places visit.
Go here instead it is Ye Olde Curiosity Shop - a must see stop for anyone looking some really odd stuff.
Also, if you are here on the rare sunny day - go to Mt Constitution on Orcas Island - it is only 1100 feet above see level but you can see from Vancouver BC Canada to Portland OR (well not really but it is one of the best views on the pacific coast.