The photograph above shows the unusual pyramids with a circle built inside them and with cross-braces connecting the circle to the corners of the pyramid. Only one pyramid is known so far built in this the way outside of Sedeinga.
At least 35 small pyramids, along with graves, have been discovered clustered closely together at a site called Sedeinga in Sudan. Discovered between 2009 and 2012, researchers are surprised at how densely the pyramids are concentrated.
In one field season alone, in 2011, the research team discovered 13 pyramids packed into roughly 5,381 square feet (500 square meters). According to archaeologists these pyramids date back around 2,000 years to a time when a kingdom named Kush flourished in Sudan.
At Sedeinga, researchers say, pyramid building continued for centuries. "The density of the pyramids is huge," said researcher Vincent Francigny, a research associate with the American Museum of Natural History in New York, in an interview with LiveScience.
Among the discoveries were several pyramids designed with an inner cupola (circular structure) connected to the pyramid corners through cross-braces. Rilly and Francigny noted in their paper that the pyramid design resembles a "French Formal Garden."
Only one pyramid, outside of Sedeinga, is known to have been constructed this way, and it's a mystery why the people of Sedeinga were fond of the design.
Klaus Dona joins us from Vienna, Austria to discuss his "Unsolved Mysteries Tour," a rare collection of out-of-place artifacts and incredible objects. Some of these objects and statuets are millions of years old and some of them display other unique properties that place them in an unknown category.
Where do they come from and who made them?
We talk about some of Klaus's favorite artifacts. Then we talk about the giant skeletons found in La Mana in Ecuador. Klaus talks about the world map stone and a pyramid stone with thirteen steps crowned with an eye that glows under black light. Later we move on to talk about a pre-Sanskrit language, the Vikings, Vinland, the Kensington Runestone and Knights Templar in America, pre-Columbus, the Conquistadors, invasion of South America, ancient sea-faring cultures, and much more.
Klaus Dona has been organizing cultural exhibitions since 1991 in Austria, Japan, and Korea. An art curator and artifacts researcher, his attention was soon drawn to "Ooparts" -- out-of-place artifacts. Ooparts are artifacts that, according to current science, should not exist.
Dona has been researching these types of artifacts for over a decade and has set up an exhibition of 470 of these Ooparts pieces -- from places such as Colombia, Bolivia, Peru, Ecuador, Mexico and many other countries. Dona appropriately named his exhibition "Unsolved Mysteries."
Museums often "bury" out-of-place artifacts in their basements to avoid the uncomfortable questions they raise. A large number of these unusual pieces are also held in private collections, out of the public eye.
Klaus Dona has been able to exhibit more than 3500 pieces, none of which have a conventional explanation.
At risk of extinction from disease and land loss In the depths of the Amazon rainforest in Brazil live tribes who have no contact with the outside world.
Illegal loggers and cattle ranchers are invading their land and bringing disease. They won’t survive unless this stops.
Brazil’s Amazon is home to more uncontacted tribes than anywhere in the world. There could be up to 70 isolated groups in this rainforest, according to the government’s Indian affairs department FUNAI.
Their decision not to maintain contact with other tribes and outsiders is almost certainly a result of previous disastrous encounters and the ongoing invasion and destruction of their forest home.