It's more than just the home of the Space Needle. Seattle Center's rides, games, restaurants and grounds span 74 acres; it's possible to spend an entire sight-seeing day right here. For the kids, it's a sure bet for entertainment, with everything from roller coasters to arcade games and mini-golf. There's also a children's museum and theatre in the Center House for a more educational experience. On a summer day, break out the bathing suits and splash around in the International Fountain (with plenty of grass for lying out and catching some rays as well).