Great article @crazy-facts, it was very interesting to read of how this fascinating instrument works, and also how it uses 2 sites to cross reference the data and eliminate all local distubances, and only record the real gravitational waves.

And thank you for mentioning Stockholm, that's where I live and I see the City Hall most days, where the Nobel Prize is delivered, I have only been able to see the ceremony on TV so far, but it's truly magnificent.