Content from National Geographic

For the 20th anniversary of "Titanic," James Cameron reopens the file on the disaster.

The St. Valentine's Day massacre is the stuff of American legend, and the tale is familiar to nearly everyone. But the story of that bloody day in Chicago has never been told, or seen, like this before. Cutting-edge graphics and frenetic recreations accompany Johnny Fratto, son of onetime Al Capone-associate Louis "Lew" Fratto, back to Chicago, where he uncovers massacre myths and learns more about the life his father and uncles led when they roamed those lawless streets in the 1920s. Johnny gets guidance and opinions from a team of renowned Chicago gangster experts, and bridges the gap between the stories he heard as a little boy and the reality he lived growing up in a mob family. Johnny's take about what happened on Feb. 14, 1929 will surprise you.

They are some of the biggest pyramids on the planet, millions of tons of stone and earth towering above the landscape in a display of massive wealth and power. But it wasn't the pharaohs that built these pyramids. This is the majestic ancient city of Teotihuacán, Mexico, home to one of the most powerful civilizations of its time. But why, around 750 AD, did the advanced civilization that created Teotihuacán suddenly vanish? The identities of its founders, the language they spoke and even the original name of the city are all unknown. DNA analysis of bodies from Teotihuacán shows they weren't Mayan, Incan or Aztec, but an entirely different civilization. It was assumed to have been a peaceful, utopian society, but the latest discoveries are revealing a much darker scenario. In the depths of Teotihuacán's pyramids, experts have uncovered vault after vault filled with curious human remains.

Explorer Robert Ballard sets out to solve the mystery of Amelia Earhart's disappearance as he and a team of experts travel to the remote Pacific atoll named Nikumaroro in search of her final resting place.

Jane Goodall has spent five years observing the chimps in Tanzania (formerly Tanganyika), Africa. One of her discoveries is that they use primitive tools. The film shows the life of the chimps. Retrospective note: This documentary features remarkable historical footage of Goodall, her original camp, and the Gombe chimpanzees. It shows the early years of Goodall establishing the site before it went on to become a world-renowned research center.

April 14, 1865. One gunshot. One assassin hell-bent on killing a tyrant, as he charged the 16th President of the United States. And in one moment, our nation was forever changed. This is the most dramatic and resonant crime in American history—the true story of the killing of Abraham Lincoln.

David Attenborough takes viewers on a breathtaking journey showing there is nowhere more vital for our survival, more full of life, wonder, or surprise, than the ocean. Through spectacular sequences featuring coral reefs, kelp forests and the open ocean, Attenborough shares why a healthy ocean keeps the entire planet stable and flourishing.

A man forms an unlikely friendship with a wild otter while living in the remote Shetland Islands.

They grew up under the Nazi regime. They pledged to give their lives for Hitler. They were fanatics who would not be stopped. They were the 20,000 teenagers who made up the 12th SS Panzer Division. Unleashed in France to halt the Allied invasion, they would sow terror and destruction in their wake. Historical colorized archives and a handful of survivors tell us this story.

Dr. Robert Ballard of Woods Hole Oceanographic Institute and his research team become the first undersea explorers to locate, photograph, and explore the wreckage of the ill-fated HMS Titanic, which sank on its maiden voyage 2 1/2 mile deep in the icy waters of the Atlantic in 1912, taking 1500 passengers and crew with it to a watery grave. Utilizing dazzling state-of-the art equipment and cutting edge expertise they record the decaying remains of the ocean liner once thought "unsinkable."

Climbers Alex Honnold and Tommy Caldwell set out on a daring expedition to tackle Alaska's formidable Devils Thumb. Battling harsh conditions and daunting peaks, they push their physical and mental limits, while their deep friendship faces its toughest trial yet.

Documentary exploring the parallels between 'The Return of the King' and real events and people in history.

Over the centuries, explorers traded tales of a lost civilization amid the dense Amazonian rainforest. Scientists dismissed the legends as exaggerations, believing that the rainforest could not sustain such a huge population—until now. A new generation of explorers armed with 21st-century technology has uncovered remarkable evidence that could reinvent our understanding of the Amazon and the indigenous peoples who lived there. Using CGI and dramatic re-creations, National Geographic re-imagines the banks of the Amazon 500 years ago, teeming with inhabitants living in the Lost Cities of the Amazon.

The New Air Force One: Flying Fortress follows the new presidential aircraft's creation, diving into how it transformed into a top-secret command center.

National Geographic: Incredible Human Machine takes viewers on a two-hour journey through an ordinary, and extraordinary, day-in-the-life of the human machine. With stunning high-definition footage, radical scientific advances and powerful firsthand accounts, Incredible Human Machine plunges deep into the routine marvels of the human body. Through 10,000 blinks of an eye, 20,000 breaths of air and 100,000 beats of the heart, see the amazing and surprising, even phenomenal inner workings of our bodies on a typical day. And explore striking feats of medical advancement, from glimpses of an open-brain surgery to real-time measurement of rocker Steven Tyler's vocal chords.

A documentary about the influences on Tolkien, covering in brief his childhood and how he detested the onslaught of industry through the idyllic countryside, moving on to describe his fighting experience from WWI, and closing with a look at the Finnish inspiration for the scholar's self-invented languages of Elfish. In between are interviews with the cast of the films and some clips, by far the most from "The Fellowship of the Ring", but a few glimpses of Rohan riders (from "The Two Towers") are provided. Also, there are interviews with a range of the filmmakers.

From the creators of critically acclaimed Inside 9/11 comes another powerful journalistic account, Inside Hurricane Katrina. Go beyond the round-the-clock news coverage for a comprehensive look behind the devastation caused by nature's fury and human error. How did this happen? Can it happen again? Why weren't emergency personnel fully ready to respond to a real disaster? Using comprehensive analysis of events, hours of government audio tapes, and personal interviews, National Geographic takes viewers into the eye of Katrina to uncover the decisions and circumstances that determined the fate of the Gulf residents.

A story of the men who put battling machines to ultimate test-the ordinary soldiers who participated in the greatest amphibious invasion in history.

In 2009 a bizarre story spreads around the globe, reported as fact in the world’s newspapers: Josef Mengele – the infamous escaped Nazi concentration camp doctor, the Angel of Death, may have succeeded in his lifelong goal of creating a blonde, blue-eyed master race. An historian says he has evidence that Mengele’s bizarre experiments on twins may not have ended at Auschwitz, that his efforts to engineer an Aryan master race continued and succeeded while on the run in South America.

Back to the Titanic documents the first manned dives to Titanic in nearly 15 years. New footage reveals fresh decay and sheds light on the ship’s future.

Reality series following a group of truck drivers in the mountain passes of Norway, some of the most dangerous roads in all of Europe.

An unprecedented look at the Stanford Prison Experiment, one of history's most infamous psychology studies, through the firsthand accounts of the original "guards" and "prisoners," many of whom are speaking on camera for the very first time.

Enter an unseen micro-verse where miniature heroes use amazing superpowers to survive in a series of spellbinding dramas.

Seeking out incredible people who perform real feats that look like magic, David Blaine takes viewers on a jaw-dropping journey through some of the world's most extraordinary cultures as he seeks out kindred spirits, finds inspiration, and learns some truly exceptional skills along the way.

Set in Central Michigan's farm country, this reality series follows the work done at Pol Veterinary Services. Specializing in large farm animals, Dr. Pol treats horses, pigs, cows, sheep, alpacas, goats, chickens and even an occasional reindeer. The program also features Dr. Brenda Grettenberger, who has worked with Dr. Pol since 1992.

A 360-degree view of the trafficking world from the point-of-view of the traffickers, law enforcement agents and those caught in the crossfire with access only National Geographic can provide.

Will Smith whose curiosity and wonder is positively infectious—is guided by National Geographic Explorers traveling to different corners of the world to get up close and personal with the weirdest, most unusual, dangerous and thrilling spectacles of the planet.

At the height of the Cold War, newly formed NASA selects seven of the military’s best test pilots to become astronauts. Competing to be the first in space, these men achieve the extraordinary, inspiring the world to turn towards a new horizon of ambition and hope.

Get ready to have your mind messed with! "Brain Games" is a groundbreaking series that uses interactive experiments, misdirection and tricks to demonstrate how our brains create the illusion of seamless reality through our memory, through our sensory perception, and how we focus our attention.

MegaStructures is a documentary television series appearing on the National Geographic Channel in the United States and the United Kingdom, Channel 5 in the United Kingdom, France 5 in France, and 7mate in Australia. Each episode is an educational look of varying depth into the construction, operation, and staffing of various structures or construction projects, but not ordinary construction products. Generally containing interviews with designers and project managers, it presents the problems of construction and the methodology or techniques used to overcome obstacles. In some cases this involved the development of new materials or products that are now in general use within the construction industry. MegaStructures focuses on constructions that are extreme; in the sense that they are the biggest, tallest, longest, or deepest in the world. Alternatively, a project may appear if it had an element of novelty or are a world first. This type of project is known as a Megaproject.

In this anthology series, heroic scientists risk all to deal with deadly outbreaks.

A six-part French documentary about the Second World War composed exclusively of actual footage of the war as filmed by war correspondents, soldiers, resistance fighters and private citizens. The series is shown in color, with the black and white footage being fully colorized, save for some original color footage. The only exception to the treatment are most Holocaust scenes, which are presented in the original black and white.

Offers the most intimate and profound exploration into the wide-ranging impacts of the Hurricane Katrina disaster to date. Weaving together critical moments of the crisis and the past events that precipitated it, the series delivers an unparalleled, emotionally raw examination of the storm’s personal, political and societal fallout.

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?

Chris is on a mission to live better for longer. With the help of top scientists, he takes on six epic challenges to test mind and body to the max.

Shot from land and air, in trees and cliff-blinds, on ice floes and underwater, this documentary tells the powerful stories of many of the planet's species and their movements, while revealing new scientific insights with breathtaking high-definition clarity and emotional impact. The beauty of these stories is underscored by a new focus into these species; fragile existence and their life-and-death quest for survival in an ever-changing world.

In six remote and beautiful places on our planet are queendoms run by the most powerful leaders in the animal world. These queens are sisters, single mothers, grandmothers. This documentary series tells their stories of resilience, strength, love and loss for the first time.

A mission to discover and re-create unexcavated worlds still hidden beneath the earth.

Relive a heroic fight for survival during the Iraq War, when the 1st Cavalry Division from Fort Hood was ferociously ambushed on April 4, 2004, in Sadr City, Baghdad — a day that came to be known in military annals as “Black Sunday.”

Alex Honnold leads an expedition to Greenland to climb a huge 4,000 foot sea cliff and investigate the impacts climate change on the region.