4-Eton College
5-Greenwich
6-Wimbledon
7 - Ben Nevis (Scotland)
8 - Welsh Corgi
9 - Fleet Street
10 - The Financial Times
12 - Madame Tussauds
13 - 221b Baker Street, London
14 - 10 Downing Street, London
15 - at the Tower of London
16 - Nelson's Column
18 - a physician
19 - Orlando Bloom
20 - Sean Connery
21 - Prince Andrew, Duke of York