Besides touring the inside of the Capitol Building (which you should do), be sure to visit the surrounding city park that houses an astounding variety of trees from all over the world. Each tree is labeled, so you can geek out on all the palm, redwood, and citrus trees (often with countless pieces of fruit hanging from the branches). Covering 40 acres and spanning 12 city blocks, it is considered one of the most beautiful state capitol grounds in the country. Highlights include the World Peace Rose Garden, the Camellia Grove, and a California native plants section. There are also monuments and points of interest, such as a Vietnam War memorial.