NASA's Unexplained Files

A behind-the-scenes look at how mass-produced foods are made.

Nazi Germany left their footprint throughout the world and silent remains still exist, leaving clues about plots that Hitler was unable to carry out. Still today, remnants of the Nazi's schemes lie concealed in structures scattered across the globe. Skeletons of projects give way to mysteries. Conspiracies abound about science fiction scenarios. The Nazis were nothing if not methodical, and a deeper look reveals even darker plans. From tunnels to towers, artillery sites and communication centers; the remains of these schemes lie waiting to reveal truths about the Fuhrer's tactics and dreams in Secret Nazi Bases. What did Hitler have planned?

From the hilarious to the mind-boggling, from the deadly to the bank-busting, witness some of the most outrageous structural disasters and the genius resolutions to get things back on track.

Worldwide, 300 million surveillance cameras are watching us, on our streets, at work, and in our homes. At times, they capture images that don't seem to follow the normal laws of physics. A new Science Channel series investigates mysteries caught on tape and uncovers the science behind some of the most bizarre occurrences ever recorded. With a team of experts analyzing footage that seems to defy explanation, including levitating cars on a freeway, a statue that appears to move on its own, and a spontaneous burst of flames.

Hosted by Morgan Freeman, Through the Wormhole explores the deepest mysteries of existence - the questions that have puzzled mankind for eternity. What are we made of? What was there before the beginning? Are we really alone? Is there a creator? These questions have been pondered by the most exquisite minds of the human race. Now, science has evolved to the point where hard facts and evidence may be able to provide us with answers instead of philosophical theories. Through the Wormhole brings together the brightest minds and best ideas from the very edges of science - Astrophysics, Astrobiology, Quantum Mechanics, String Theory, and more - to reveal the extraordinary truth of our Universe.

Exploring machines invented for human survival in the extreme cold across the planet.