"Worth every penny of the $24 admission fee. I spent nearly 2 hours here. Very moving and extremely well presented."
"Buy your tickets online, and if you turn up a bit late to your timed visit they fast-track you in bypassing all the lines"
"Worked here in the late 90s"
"O2 provides strong, free WiFi for most of the high street"
"You don't have to be checked in here to hear the chimes - head to @Big_Ben_Clock for Big Ben on Twitter"
"Completely refurbished (April 14) plug points everywhere"