Light and sound. Crowds too. Parties and theaters are things that I don't enjoy. Shopping malls are okay if I can keep moving or duck into a quiet store. Classrooms are difficult, which is why I would try to duck out soon after roll was taken, and after receiving the day's assignments. I also need the bedroom to be completely dark and silent before I can fall asleep. When the guys at work start grinding and banging on things, I have to practically barricade myself in my office to get any work done.
Hiking though the forests and mountains is where I am most at peace.
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.