An application for SAVILE ROW would be refused on the grounds that the general public would assume that the goods/services emanated from or were associated with Savile Row, and this would cause deception.
Equally CHANCERY would be declined in respect of legal services and ASCOT for racing goods/services. Contrast this with the German town CLOPPENBURG, where it was ruled that the registrability of a geographic name depended on whether the locality was known to the relevant consumers (Peek & Cloppenburg KG v OHIM, Case T-379/03, 25 October 2005)
So dont be a donut and think distinctive!