The origin of mankind starts in Kent. It is here in the south east of England that monkey became man, science was turned upside down, and faith in God was brought into question.
For it is in Kent that you will find Down House, the home of Charles Darwin, whose theory on The Origin of the Species changed the world world forever.
I'm not quite sure the exact year it was built, but Down House has been around since at least 1651. The Darwins lived there between 1842-1906, after which, it became a girl's school. The original school moved premises in 1922, and another took its place. This, however, was unsuccessful and closed down in 1927. Since then, Down House has been a museum, open to the public between 10am-4pm. Tickets are £10 for adults, £9 concessions, and £6 for children.
You can wonder round at your own pace, but you will probably learn more by going on one of the scheduled tours.