The Great Pyramid of Giza, the Colosseum, the Great Wall of China, the Notre Dame Cathedral. What would it take to build these remarkable super structures today? How long would it take? How much would it cost? How many workers would we need? In our modern era of glass and steel, could we even pull it off? If We Built It Today talks to architects, historians, engineers, and builders to find out if we could use modern day innovations to recreate these iconic masterpieces, or if fundamental techniques have been lost to time.

They happened in times of war and peace, during daylight and darkness, and to victims old and young. These are the stories of the most heinous murders of the 19th and 20th centuries, some of which have faded from memory and others that continue to haunt their host cities to this day. Join us as we travel back to times when autopsies were done by hand and detectives had to overcome the limited tools of their era--and often invented new forensic techniques on the fly--in a race to catch the killers before they strike again.

Unearthed decodes mysteries and combines scientific investigations with CGI animation to reveal the hidden secrets of iconic structures and monuments from around the globe -- ancient and present-day. The show explores how they were designed, built, used, and in some cases, lost and rediscovered. At critical points in each episode, stunning "blow apart" CGI animation deconstructs the structures to reveal hidden anatomy while exploring the secret history of each edifice, immersing us in the age and culture in which they were constructed.Archeologists travel to various parts of the world, in search of ancient secrets of mysterious civilizations. From the tallest pyramids to an underwater city, experts take viewers on an unforgettable journey.Unearthed fuses elements of engineering, history, geology, and archaeology, revealing the deepest secrets of each structure. We'll see the latest technology used to solve mysteries such as how the Parthenon still stands against earthquakes; how sticky rice was used to build the Great Wall of China; and what sacred secret lies beneath the Mayan temples of Chichen Itza.They may be older structures, but scientists and archaeologists use the latest technology including LiDAR scanning, X-ray imaging, carbon dating, and 3D printing techniques to reveal secrets of the past in ways that weren't possible before. Unearthed shows the future of science and technology are key to understanding our past, and without these developments, we wouldn't be able to unravel some of the world's greatest mysteries.

What if extinct animals weren't really extinct? The methods used to declare a species extinct are not as fool proof as people might assume. From eyewitness accounts to last known photographs, there is evidence that suggests some of these creatures are still very much alive in the wild. The search is on for wildlife adventurer and biologist Forrest Galante, as he explores the real stories behind animals thought to be gone forever and tries to prove their existence so he can protect them and help them thrive again. From the Florida everglades to remote jungles, the cameras follow Forrest Galante as he meets and listens to locals, some whom claim to be eyewitnesses of animals we thought were no longer in existence. Armed with the information and clues, Forrest sets out to prove the unimaginable, and be the voice for species the world has given up on.

Shark Week is an annual, week-long TV programming block created by Tom Golden at the Discovery Channel, which features shark-based programming. Shark Week originally premiered on July 17, 1988.

America's Book of Secrets on goes deeper, farther and wider than ever in its unceasing effort to bring viewers the truth behind today's most shocking headlines. From the facts behind the NSA spying scandals ("Big Brother") and the Boston Bombings ("American Terrorists") to America's secret prisons, Scientology, the Gold conspiracy and America's doomsday plans, this thought-provoking informational series features in-depth interviews with top journalists, law enforcement officials and even whistleblowers. It gets past the spin and straight to the heart of what everyone needs to know, whether the government wants you to or not.

What on Earth? is a documentary series using satellite images of strange geological occurrences and man-made structures on Earth to examine such matters as the planet's extreme locations, phenomena and species.

Drugs: A multi-billion-dollar industry that fuels crime and violence like no other substance on the planet. Turning cartel leaders into billionaires, the illegal drug industry also provides vital income to hundreds of thousands of poor workers across the globe. While some users sacrifice their lives to an addiction they can't escape, others find drugs to be their only saving grace from physical or emotional pain almost impossible to overcome. Where should the lines be drawn in this lucrative industry?