Any new interesting web sites to improve my general culture and knowledge?

The Smithsonian Institute

http://www.si.edu/

I learn a per 30 days journal geared toward over-50's, and there's regularly a General Knowledge quiz. It regularly amazes me how little I understand, but I used to be aspect of a Team which gained a couple of trophies in a Pub League Quiz. So so much in the market and so little time - if handiest the whole thing we knew would be handed on with our DNA we would be unstoppable. There is such a lot to detect and so little time. One of my college experiences mentioned "Veronica has an enquiring brain"!