San Francisco’s All-Age Science Museum Explores Mental Illness And, Subtly, Homosexuality Changing Face of What is Normal: http://techcrunch.com/2013/04/10/san-franciscos-all-age-science-museum-explores-mental-illness-and-subtly-homosexuality/
Science projects. Haven't been through much of the site but looks interesting for older children. Looking at The Science of Cooking especially. Also, After School Activities looks like something some boys I know might enjoy.