I’m afraid that it would be in the subway tunnels here.
Which reminds me of one of the Planet of the Apes movies.
One of the old ones with Roddy McDowell in a rubber chimp suit.
Some strange religious sect met in the subway system. It turned out they were worshipping a nuclear bomb. I think it was “Beneath the Planet of the Apes.” I don’t remember the plot, if there was one.
There’s an interesting series of science fiction novels in which the society worships computers.