If you're interested in learning all about past civilizations, you'll love Museum of Traditional Houses. Study its unearthed artifacts and gain an insight into the customs and beliefs of people from long ago.
You're spoiled for sightseeing choice when visiting Honiara. Museum of Traditional Houses is a good place to begin here, but there are lots of other fine places to experience. Lawson Tama Stadium, Central Market, and Mataniko Falls are close to the exhibition of human history and will round out your day nicely.