If you're the kind of person who loves reading Wikipedia pages on random and arcane subjects, you should also know about the Congressional Research Service. I often browse a CRS report to get up to speed on a specific topic in a short period of time. CRS has reports on all sorts of obscure things, typically prepared with a policy lens for the needs of US lawmakers. Here's a fun one about Daylight Savings Time. https://www.congress.gov/crs-product/R45208