I got the city pass at the pier (by the Pike Place...

I got the city pass at the pier (by the Pike Place Market) and visited the Museum of Pop Culture among other sights around Seattle. It's quite easy to find being nestled under/beside the Space Needle. The building is fascinatingly beautiful outside as well. You can not miss it!
This place is PERFECT for a music lover/fanatic. There's even a place here where you can record your OWN music, learn and play guitar, keyboard, etc... Do vocals in a recording booth, etc. Kids will LOVE this place. There's a place for Nintendo in there too that's included with admission cost (and a Muppets area too! but that costs extra).
There's historical instruments owned/played by famous musicians as well.
Highly recommend you give this place a visit yourself! I wasn't sure what to expect to be honest but I was pleasantly surprised!
If you do the city pass this place is included with aquarium, space Needle, etc. and VERY well worth the cost!
I'm a Floridian and will be back to Seattle.... with a visit to the MoPop building again too!