World's Greatest Mysteries

By official accounts the event seems straightforward: On 31 August 1997, Diana, Princess of Wales, died of injuries sustained in a car crash in Paris. However, there are still unanswered questions. Is there something the authorities have yet to reveal?

December 7, 1941: The Japanese attack on Pearl Harbor, Hawaii devastates the U.S. Pacific Fleet and pushes America into World War II. . The history books fail to explain if the 'surprise' attack was really a surprise. This program addresses that question.

Legend says the famous bank and train robbers Butch Cassidy and the Sundance Kid fled to South America and were killed in a gun battle with Bolivian soldiers. Legend also says they survived. This program examines fact and folklore to resolve this debate.

Is anything really new? Does every innovation already exist, waiting to be found? Is the future buried in the past? Plato observed 'Necessity is the mother of invention.' Was he right? This show examines if today's inventions are actually ancient history.

Controversy has surrounded the construction of the Great Pyramid in Egypt for over four thousand years. The 'Coral Castle', built in 1923 by one man using crude tools and no mortar may hold the answers as this intriguing program explores.

Did John Wilkes Booth act alone in assassinating President Lincoln? Was he aided by Confederate sympathizers? Was there a larger conspiracy at the highest levels of government? This program asks these questions and presents newly discovered evidence.

News stories report elementary school aged scholars who earn college degrees, even doctorates. Are these children the vanguard of a new generation of intelligent human beings or the product of genetic coincidence? This program examines the question.

The strange sighting over the southwestern United States in March 1997 called the 'Phoenix Lights' lasted for three hours. Investigators found no plausible explanation. This program presents new footage of the Phoenix Lights that continue to appear.

The 1991 discovery of the 5,200 year old remains of a Copper Age man frozen in Italy's Alpine mountains altered the scientific community's view of the history of man and may aid scientists in determining how long the human race has lived on planet Earth

Official U.S. government policy is that there is no credible evidence that any POWs or those listed as MIA are still alive from World War II, the Korean War or the Vietnam War. Is that a true fact? What is the truth about the fate of our POWs and MIAs?

Fifty years after President John F. Kennedy was assassinated there are still questions: Was Lee Harvey Oswald the lone gunman? Was there a conspiracy? Why were the Warren Commission findings sealed for 75 years? This program examines these questions.

The pyramids at Giza near Cairo, Egypt are among the most extraordinary structures ever built. The pyramids have stood for thousands of years yet remain shrouded in mystery including the question were the Egyptians truly the builders?

What happened at Roswell in July 1947? Did an alien spacecraft crash and the bodies retrieved or was it a weather balloon as authorities later claimed? Could this be the most shocking cover-up of the 20th century? This program examines that question.

The U.S. Government says Area 51 is just an Air Force 'operating location'. Planes are warned they'll be shot down if they fly over. Signs authorizing deadly force surround the base. Helicopters and Humvees are on constant patrol. What are they guarding?

Easter Island is famous for its monumental statues called Moai. These eighty ton monolithic statues were transported several miles and arranged in rows on raised platforms. How did the Rapa Nui create and transport them? Most intriguing is 'Why'?

Oak Island in Nova Scotia is the site of one of history's most intense treasure hunts since this cryptic message was found: 'Forty feet below two million pounds are buried.' No one has been able to get to the treasure now worth billions of dollars.

December 9, 1965: The residents of Kecksburg near Pittsburgh see a fireball crash in the nearby woods. They find a copper object the size of a VW. The military takes it saying it is a meteorite. Eyewitnesses disagree. What fell from the sky that night?

The sophisticated Anasazi civilization emerged around 1200 BC. The mystery is why two millennia later they abandoned their cliff homes and leave everything behind and disappeared from history? This program examines that intriguing question.

Cave paintings found in France that depict the use of plants for medicinal purposes carbon-date to 25,000 BC. What did the ancients know? Are there methods and medicines they used that could eliminate some of the most life-threatening illnesses of today?

Why did General Custer, a seasoned commander who always relied on planning and reconnaissance before engaging, use such ill-conceived tactics at Little Bighorn in 1876? The question this program examines is: A mere blunder or a political conspiracy?

Dolphins are regarded as one of Earth's most intelligent animals and capable of sending information to each other. This program studies their intellectual similarities to humans and asks: Do dolphins have the capacity to understand human communication?

History records the words of men and women who seem to have an uncanny insight into future events. Could the ancient prophets really foretell the future? The program asks: Did ancient prophets have the ability to see events centuries before they happened?

There are over 31,000 known meteor impact sites on Earth with craters up to 186 miles in diameter. Some experts say an impact doomsday scenario is science fiction. Others say it is only a question of 'when'. Could humanity survive? Could Earth survive?

Mars has always fascinated humanity. Was there ever life on Mars? Is their life on Mars? This program examines photographic evidence of what appear to be manmade structures on our mysterious neighbor and asks could Mars be a link to another civilization.