The Three Mills are located in the oldest industrial centers of London.They are the largest and the most powerful of the four tidal mills. There is said to have originally been eight or nine mills on the spot and this is considered to be one of the earliest examples of a tidal mill. It no longer operates as a mill and has been converted into the 3 Mill Studios. The studios provide rental space for television and film production. The studio was used as the base for the popular television show Big Brother in 2000. The mills are a great historical landmark as well as an interesting sight.