Determine if the sentence is true based on the text below:
More than nine windmills remain preserved in Greater London, England.

A list of existing and former windmills whose sites fall within Greater London, England. When built, these mills were within the counties of Kent, Surrey, Middlesex, Hertfordshire or Essex. Of those windmills known to have existed, nine remain and are preserved; as are the tide mills at Three Mills, West Ham.
No