it is expensive, and HUGE. I didnt have any idea how spread out it is. My train ride from Heathrow to Kings Cross seemed like an eternity. It was entertaining enough to just walk around and look at things. It was about everything I imagined it to be. Camden Town was probably my highlight because I hadnt heard of it before going there and it was way cool. The london eye is really cool to go in. If your tight on your budget though, go somewhere else.