The London Eye tickets are extortionate! Not sure if she'd qualify for a concessionary price, but last year adult tickets were £30 each! Lot of money for a ride on a big wheel .....

Take her down the South Bank to see Borough Market and Southwark - what about a Jack the Ripper Tour (most teenagers loved being scared witless) - Shakespeare's Globe Theatre - just to see the Houses of Parliament and Big Ben is pretty amazing.