The Pike Street Market includes an indoor mall. You can enter it at several points at the market and on that block of First Avenue. There will be big signs and you can ask. Pike Street Market is on the side of a hill, so there are different levels. Most pictures (as below) show the top outdoor level with the famous clock sign. Duly note that the mall is very old fashioned (circa 1900) with hardwood floors, and I assume is in its original circa 1900 design. We're not talking a modern suburban mall.
