I’ve often heard the expression “There is more that we don’t know than what we do know” (or think we know). When considering the “Unexplained’ many of us tend to think that just because we can’t come up with what we consider a “rational” explanation it must not be real. Many unexplained events are tossed off as fantasy, delusion, fakery or hallucination.
I am amazed at the considerable number of events that we are not able to explain away, many of which have been experienced by thousands of persons and in some cases hundreds of thousands.
Here are just a few examples:
Alien UFOs, crop circles, alien abductions, ancient aliens, spontaneous human combustion, prophecy, ESP ( psychic abilities such as intuition, telepathy, psychometry, clairvoyance, and trans-temporal operations as precognition or retrocognition), astral projection, star children, reincarnation/ past lives, resurrection, channeling, poltergeist, after life spirits and alien animal mutualization. Bigfoot and other monsters (Moth man), etc., remote viewing & near-death experiences. The London Hammer and Sudden Genius mystery https://www.bbc.com/future/article/20180116-the-mystery-of-why-some-people-become-sudden-geniuses
In addition, there are the massive stone constructions at Baalbek, Sacsayhuaman, Ollantaytambo, and the floating rock in Takasago city https://setouchifinder.com/en/detail/488 among others.