We had a 6 hour lay-over in London on our way to Romania so we hopped a train to the city. After getting lost a few times, we managed to find the London Bridge. It was a lot like being in The Great Race. We spent 20 minutes taking photos and walking across the bridge. We then got back on the Metro and took a short stop at Big Ben for more photos. We headed back to Heathrow Airport next and got through security with plenty of time to catch our flight. It was a lot better for us to go on that crazy adventure than to sit around in the airport feeling bored. Plus, I got a new stamp in my passport.