If you’re visiting San Jose, I’d say start with the Tech Interactive and the Computer History Museum (super interesting even if you’re not a tech geek), then check out Santana Row for food and a chill evening vibe, and the Winchester Mystery House for something a bit unique. If you like nature, Alum Rock Park is great for a peaceful walk, and you can also do a quick trip to nearby spots like Santa Cruz for the beach. I personally liked just walking around downtown and grabbing food—it’s simple but gives you a nice feel of the city.