With 9 square miles of green spaces, 300 days of sunshine a year, and four different professional sports franchises to follow, San Jose, Calif., has everything you need for a happy childhood. At just over 1 million residents, San Jose considers itself the capital of Silicon Valley, but it doesn’t take a computer scientist to understand the city’s appeal to kids. San Jose is the country’s safest big city, and although it’s certainly expensive—the median home price is $449,000—the city offers all sorts of great activities for children. Rather than chasing its skateboarders away, San Jose has embraced them by opening six public skateboarding parks, including Lake Cunningham Regional Skate Park, the largest one in the state. And at the Children’s Discovery Museum of San Jose, children can experience everything from theater to gardening.