The new Foyles flagship at 107 Charing Cross Road houses a range of over 200,000 different titles on four miles (6.5km) of shelves - the equivalent of lining one bank of the Thames with books from Battersea Power Station to the Tower of London. With 37,000 square feet of retail space, spread across eight alternating foot-plates over four floors, it is the largest bookshop to have opened in the UK so far this century.