The Rock-hewn Churches of Lalibela are located in the Western Ethiopian Highlands near the town of Lalibela, named after the late-12th and early-13th century King Lalibela of the Zagwe Dynasty. Could Lalibela have been built to house and hide the Ark of the Covenant? (Credit: Getty Images)

Investigative journalist David Whitehead stands on The Loretto Chapel’s Miraculous Staircase. Legend states that seeking guidance and help, the Sisters of Loretto prayed a nine day novena to St. Joseph, Patron Saint of Carpenters. On the final day of the novena, a carpenter appeared with only a hammer and carpenter’s square. He built what is now known as the Miraculous Staircase with simple tools and wooden pegs. When the Staircase was complete, it is said that the carpenter disappeared without receiving thanks or payment. (Credit: Prometheus Entertainment)

Sarah Winchester, heiress to the massive Winchester Rifle fortune, spent nearly 40 years—and the equivalent of more than $60 million dollars—constructing a bizarre labyrinth of stairs, halls and doors in order to keep the vengeful dead, killed by The Winchester Rifle, at bay. But could she have had a more secret purpose for building such an elaborate maze? (Credit: Public Domain)

Sarah Winchester put a safe in the grand ballroom of her mansion. Not only was the location odd, but the safe itself turned out to be a safe within a safe within a safe. People were hoping to find treasure, gold bars and jewelry, but they only found a lock of hair from her baby Annie, who passed away at only a few weeks old, and the obituary of her husband, who passed away from tuberculosis. Was Sarah Winchester hiding something more profound? (Credit: Winchester Mystery House, LLC)

Ed Leedskalnin was an immigrant from Latvia who came to the United States and built the only modern megalithic structure ever known. From 1923 until 1951, Leedskalnin perfectly shaped, lifted, fitted and stacked over two million pounds of limestone. His structure came to be known as the Coral Castle. (Credit: Jeremy Stride)

Ed Leedskalnin, who was only five feet tall, said he built the incredible megalithic site known as Coral Castle using only a few pulleys and a tripod. Ed only worked at night and was extremely secretive. How could such an elaborate structure have been constructed by one man? Ed himself said he knew the secrets of the pyramids. Could he have used methods previously unknown to man? (Credit: Jeremy Stride)

In a paper published by the Journal of Applied Physics in 2018, a team of scientists researched the Great Pyramid and found that electromagnetic energy was present in some of the chambers. This new discovery led many to question whether the Great Pyramid was actually constructed to channel power from the Earth. (Credit: Prometheus Entertainment)

In the Diquís Delta of Costa Rica, there are over three hundred stone spheres of various sizes scattered across twenty-five acres of jungle. Archaeological evidence dates the earliest to approximately 200 B.C. They range from the size of a tennis ball all the way up to nine feet in diameter. Where did they come from and how is it possible that they could have been carved into perfect spheres? (Credit: Hugh Newman)

Local lore suggests that at the center of the Costa Rican stone spheres is a black stone. Many of the stones were cracked open to find that some actually did have a black stone in the center. How could the locals have known that at the center of these perfectly spherical stones, they would find a black stone? (Credit: Hugh Newman)