I am very fond of things that are unquestionably true. Some things are so simple, or so well defined, that no one but a nutcase is going to argue with you about it. Despite their simplicity, once you begin to analyze things like this, they can become extraordinarily complex. I will provide a few examples.
I thoroughly enjoy studying maps. Ironically, I am not very good at geography. There, of course, is a slight bit of ambiguity with maps, as often we will find ourselves torn between two groups of nutcases, both who provide some reason or reasons to believe that a certain territory belongs to them, such as with Israel and Palestine.
Another great resource is CSPAN. They provide unfiltered live coverage of the US House of Representatives and the US Senate. This coverage is also available online. This isn’t to say that the words coming out of the politicians’ mouths are the absolute truth. But you hear exactly what is being said, and not someone else’s analysis of it.
And one of my favorite subjects is mathematics. A well-written proof is a truly beautiful thing. Since concepts in mathematics are so well-defined, then a proof is concrete (so long as you did it correctly).
To me, it is so difficult to find things in life that are pure, absolute truth. So many people are trying to pull one over on you, or have ulterior motives, that it is a constant struggle to know what to believe. When you truly have trust in a person, thing, or concept, it is a very comforting feeling.