Posey's was home of the Capitol Cigar Club in Sacramento, CA (it is now shut down). More vintage neon signs, including Posey's Cottage information, can be found here.
The Crocker Art Museum in downtown Sacramento is currently featuring American Pop art, how trite. Like Andy Warhol needs anymore notoriety. The museum is open during construction, and like the sign says, free on Sundays from 10-1, which sounds like a great time to go.
K Street is a closed off street in downtown Sacramento, California. Unfortunately most of it is rundown and not really worth walking past, although the trees are nice.
The California State Capitol Park (near the Capitol building) has a tree tour, where you can wander around and see different types of trees that are clearly identified, it is a nice place to take a stroll. Unfortunately, you are not allowed to climb any of the trees.