You would think that some of these mysteries would have been solved with all of our technological advances. But, these cases have left us humans totally baffled.
Bimini Road
An underwater rock formation near North Bimini Island was found in 1968. At the time, experts believed that the rectangular stones were naturally made. Because of their unusual arrangement, some believe that they form a road that leads to the lost city of Atlantis. Dr. Greg Little revealed that there is another row of rocks directly below the first theorizing that the "road" is actually the top of a wall.

El Chupacabra
El Chupacabra translates to "The Goat Sucker" in Spanish. It is a mythical monster that supposedly lives in parts of Puerto Rico, Mexico, and the United States. Believers in El Chupacabra say that it acts like a vampire and sucks blood from livestock like goats. There have been a lot of so-called sightings, but experts have denied its existence.

The Lost City of Atlantis
Plato wrote about a beautiful island in the Atlantic Ocean that went under the ocean waves in one day and one night. Ever since, people have been looking for this lost city, but there has been no tangible evidence that it even exists.

Bermuda Triangle
Also known as "The Devil's Triangle, is an area in the western part of the North Atlantic Ocean where a number of ships and planes have allegedly disappeared under mysterious circumstances. Some people say that the disappearances are due to extra-terrestrial activity, but researchers say that the disappearance claims are embellished or inaccurately reported. The US Navy doesn't even recognize this as an area that exists, and a 2013 study by the World Wide Fund For Nature did not add it to their top ten most dangerous areas for shipping.

Tunguska Explosion
Back in 1908, an area half the size of Rhode Island burst into flames from a fireball explosion that was estimated to be equal to 2,000 Hiroshima-type atomic bombs in Tunguska, Siberia. Scientists thought the explosion was caused by a meteorite, but there was no evidence of that and no crater. Others think that anything from UFOs to Tesla Coils caused the explosion.

Spontaneous Human Combustion
There have been several cases of spontaneous human combustion over the years. There is still no known true cause for this kind of phenomena. Some people believe that cigarettes are the primary cause, but that theory has not been proven. The most recent case happened in Germany.

Ball Lightning
Ball lightning is the name given to the electrical phenomenon where spherical balls of lightning appear in the sky for several seconds, often during thunderstorms. The true cause of this phenomena is still unknown because they are almost impossible to study.

Vile Vortices
A Vile Vortex is a term given to one of 12 geographic “paranormal triangle” locations which biologist and writer Ivan T. Sanderson has claimed to be the mysterious disappearance sites. The most famous of these is the Bermuda Triangle, but there are others like the Devil's Sea near Japan and the Algerian Megaliths near Timbuktu.

Sailing Stones
Death Valley has stones that have been found with long tracks following them with absolutely no human or animal intervention. They call them sailing stones. These stones have been studied for decades. The most substantial theory regards the movement as being caused by Ice Shove.

Roanoke Colony
In 1587, Queen Elizabeth I sent a group of English colonists, led by John White, to the Roanoke Island (present-day North Carolina), in hopes of establishing a permanent English colony. Since there were growing tensions with the natives, John White went back to England to get reinforcements. He returned several years later to find the whole settlement completely deserted with not a single sign of conflict and no remains to be found. Not a single original colony member has ever been found.
