https://www.ligo.caltech.edu/WA/page/lho-public-tours A free public tour is held the second Saturday of each month. It is truly fascinating, please go!
Check the web page for your days and hours. I've been twice, both times it was mesmerizing. You get a very detailed overview of the entire project and facilities. 10/10 recommended.
I have also been on the tour. Great stuff. Both inside and outside. Get their early enough to hear the presentation that takes place before the 2nd tour.
As everyone else said, highly recommended!
As stated by others, second saturday of the month and a tour is highly recommended. Very interesting stuff out there.
Yes once a month on a Saturday I believe
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