All of them : http://list25.com/25-greatest-unsolved-mysteries-ever/ <-resource p="">
I chose the most interesting ones by my opinion :)
Bermuda Triangle
Known as the Bermuda Triangle, this
legendary expanse of ocean can be found between the points of Miami,
Bermuda, and Puerto Rico. Pilots often tell of their instruments going
haywire and numerous ships have been lost at sea. With explanations
ranging from gas bubbles to aliens, no one is sure what is behind the
strange phenomena.
Georgia Guidestones
Also identified as the American version of
Stonehenge, the Georgia Guidestones located in Elbert County are
shrouded in mystery, although they were erected only in 1979. Written on
the walls are 10 “new commandments” written in English, Swahili, Hindi,
Hebrew, Arabic, China, Russia, and Spanish although no one is sure why
or for whom they were meant.
Black Dahlia Murder
22-year old Elizabeth Short was very
active at promoting herself into showbiz at the time the Black Dahlia
murder occurred, however, no one knew of the killer or who actually did
the murder.
Stonehenge
While Stonehenge is a very fascinating
structure due to the big rocks that stand atop one another, the biggest
mystery isn’t how it was created but why.
The Lost City of Atlantis
The City of Atlantis has been imagined as
the crowning city of Neptune, where mermaids and mermen live. But based
on what Plato has discussed during his time, specifically with his two
dialogues Timaeus and Critias, it specifically mentioned the existence
of Atlantis based on the stories being heard during the journeys, and
how Atlantis was in its prime state, thus giving a clue that the place
did exist as Plato was a real entity. Now that it sunk into the deep,
many are still wondering if it is real, knowing that there are certain
objects underwater that may be the remnants of this once beautiful city.
Wow! Signal
When Jerry R. Ehman worked under the SETI
Project of the Ohio Wesleyan University’s Perkins Observatory, he did
not expect that he would be able to pick up a radio frequency supposedly
coming from deep space. He was able to get a 72-second signal from the
constellation Sagittarius and was never able to get it again. Up to this
day no one is sure about the origin of the signal. It derived its name,
however, from the “wow!” that Jerry wrote in the margin of the
printout.
SS Ourang Medan
What happened to SS Ourang Medan or “Man
from Medan” in Malaysia is perhaps one of the most fascinating and
mind-boggling mysteries that ever existed in seafaring history.
Everything began with an SOS message in 1947 that mentioned the captain,
along with the rest of the crew, was dead. What’s worse, even the
telegrapher died during the transmission of the message. When the Silver
Star was able to receive the distress call and went to inspect the
ship, they confirmed the deaths of all aboard. Speculations of ghosts,
hazardous chemicals, and even aliens have been raised, but there is
still no conclusion as to what actually happened.