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.