Many popular experts suggest possibility that mysterious sites around the world were created with help of advanced knowledge and technology (possibly more advanced than our current one) possessed by lost civilizations.   Others do not believe that there ever was very advanced civilization  on  earth and all of the superb knowledge was handed down to us by ancient astronauts who came down from heaven. Most scientists do not subscribe to any of these ideas and try to explain ancient enigmas on the ground of  religion and ritual. Here are top 10 most enigmatic places in the world:
1. The Pyramids of Giza and the Sphinx (Egypt)
Although it is clear the pyramids were   used for the burial of pharaohs, the construction, date, and possible   symbolism of the Giza pyramids are still not entirely understood. This   mystery only adds to the attractiveness of these ancient wonders and   many modern people still regard Giza as a spiritual place. A number of   fascinating theories have been offered to explain the “mystery of the   pyramids”. Even the most skeptical visitor cannot help but be awed by   the great age, grand scale and harmonic mathematics of the pyramids of   Giza.
2. Stonehenge (Great Britain)
Perhaps the world’s best known monument   is Stonehenge, located in the English county of Wiltshire. It’s  composed  of earthworks surrounding a circular setting of large standing  stones  and is believed to have been built around 2500 BC but has been  revised  and remodeled over a period of more than 1400 years. Though  theories and  speculation abound, no one knows what the original purpose  of the  prehistoric monument was and it remains one of the earth’s  greatest  mysteries.
3. Easter Island (Chile)
Easter Island, also known as Rapa Nui or   Isla de Pascua, is a Polynesian island in the southeastern Pacific   Ocean, most famous for its monumental statues which were created by the   Rapanui people. The statues, called moai, were part of the ancestral   worship of the island’s settlers and were carved between 1250 and 1500   CE. The heaviest moai erected weighs 86 tons, illustrating how great a   feat it was for the Rapanui to have created and moved them. Nearly half   of all remaining moai are still at Rano Raraku, the main moai quarry,   but hundreds were moved to stone platforms around the island’s   perimeter.
4. Baalbeck (Lebanon)
Baalbeck is a city in eastern Lebanon.  It  was a flourishing Phoenician town when the Greeks occupied it in 331   B.C. It became a Roman colony under the Emperor Augustus in 16 B.C.On   its acropolis, over the course of the next three centuries, the Romans   constructed a monumental ensemble of three temples, three coutyards,  and  an enclosing wall built of some of the most gigantic stones ever   crafted by man. Some tourists believe that the construction can only be   attributed to extra-terrestial artwork . At the southern entrance of   Baalbeck is a quarry where the stones used in the temples were cut. A   huge block, considered the largest hewn stone in the world, still sits   where it was cut almost 2,000 years ago. Called the “Stone of the   Pregnant Woman”, it is 21.5m x 4.8m x 4.2meters in size and weighs an   estimated 1,000 tons.
5. Machu Picchu (Peru)
Machu Picchu is the most well-preserved   city of the Inca empire, hidden in the Peruvian Andes high on a steep   mountain with a flattened top, a location that helped it escape notice   by Spanish conquistadors. It was forgotten for centuries by the outside   world, and re-discovered by archeologist Hiram Bingham in 1911. The   stones of this city fit together so tightly a knife blade can’t fit   between them. Modern research suggests that Machu Picchu was built   around 1450 CE as a retreat by and for the Inca ruler Pachacuti and that   it was actually relatively small by Inca standards.
6. Nazca Lines (Peru)
Nazca Lines are the most outstanding   group of geoglyphs in the world, they are located in the Nazca Desert.   Etched in the surface of the desert pampa sand about 300 hundred figures   made of straight lines, geometric shapes and pictures of animals and   birds – and their patterns are only clearly visible from the air. To   comprehend the Nasca lines, created by the removal of desert rock to   reveal the pale pink sand beneath, visitors have proposed every   imaginable explanation – from runways for spaceships to tracks for   Olympic athletes, from op art to pop art, to astronomical observatories.
7. Tiahuanacu (Bolivia)
Tiahuanacu (also called Tiwanaku) is a   mystery because of its age (estimated to be 17,000 years) and the   peculiar stone technology. Today there is little doubt that Tiahuanaco   was a major  sacred ceremonial centre and focal point of a culture that   spread across much of the region. The ancient people built a stone   pyramid  known as the Akapana.
8. Chichen Itza (Mexico)
Chichén Itzá is an archeological site of   an ancient city built by the Mayas. The site contains various massive   structures such as El Castillo (the Temple of Kukulkán) and the Temple   of the Warriors, on top of which we find a statue of Chac-Mool or Rain   God, on which it is said that the Mayan priests placed still beating   hearts removed from living victims in their sacrificial rituals. Chichén   Itzá was a vast metropolis. It was built by a Mayan tribe called the   Itzáes in the 9th century AD and flourished as a major regional capital   until the 12th century. The true origin of the Itzá people still  remains  mystery.
9. The Stone Spheres of Costa Rica
One of the strangest mysteries in   archaeology was discovered in the Diquis Delta of Costa Rica. Since the   1930s, hundreds of stone balls have been documented, ranging in size   from a few centimetres to over two meters in diameter. Some weigh 16   tons. Almost all of them are made of granodiorite, a hard, igneous   stone. These objects are monolithic sculptures made by human hands.
10. Underwater Ruins in Japan
On the southern coast of Yonaguni,  Japan,  lie submerged ruins estimated to be around 8,000 years old.  Though some  people believed that it was carved by geographic phenomena,  it’s now  confirmed to be man-made as the intricate stairways, carvings  and right  angles suggest. It was discovered in 1995 by a sport diver  who strayed  too far off the Okinawa shore with a camera in hand.



















