And a number of others. Many schools (usually pre-schools admittedly) based on the works of Montessuri and Steiner are all running worldwide.
There are also many schools in the UK which have blended a little of the 'free school' methodology into their curriculae. My nephews go to one. They're smart little buggers and expect reason instead of authority when we're discussing and deciding plans which is enormously frustrating and deeply reassuring.