What options do you have if you have a few hours to kill in an airport before your next flight connection?...

"I think that London Heathrow would be a good airport to leave to kill some time. I'm a huge Museum freak, so if I had say, six hours to kill that didn't require traveling at rush hour, I'd go into London. I guess many people might not think you could easily get in and out of London in short order, but their public transportation is actually pretty good. You can get to downtown London on the Heathrow Express in 15 minutes."

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