Wow is this a crowded and busy and really expensive city. Food in the grocery costs 2+ times US. gasoline is 3+ times as much. Public transportation is 2-3 times as much. Other socialist nations' capitols are not that expensive.
Today, we first went to see Big Ben (all day train bus pass is $14, short bus ride to get to the train is $4pp) and took a photo for one of my kids before going into Westminster Abbey ($13 pp to get in a church) where William the Conquerer was crowned king of England after winning the Battle of Hastings in 1066. Then to ride the big ferris wheel called The Eye [photos]. Then a walk through Trafalgar Square, on to Piccadilly Circus, then to the "Old Vic" to get theater tix for tonight. Back to the Hostel "office" to handle some work then get ready for dinner and the play.