It's from all those stupid Facebook check-ins people do. Here's 'Heathrow Airport', at JFK airport, because someone, over 6 years ago, didn't know how to work with Facebook.
Why do we even need the resources to host these, let alone maintain and display. Who benefits from LITERAL GARBAGE in these datasets?
https://www.facebook.com/pages/London%20Heathrow%20Airport/254807908554621/