EGYPT'S UNEXPLAINED FILES uses the latest science to help experts solve some of Egypt's most enduring mysteries.

An examination of the current state of political polarization in the United States of the America.

The abandoned castles of Europe are magnificent markers of the continent's tempestuous history. But where they once hosted royalty, these empty, hulking structures are now overtaken by the wildlife and rich natural environments flourishing around them. From peregrine falcons ruling the bell towers of Germany's Heidelberg Castle, to exotic amphibians thriving in the spring-fed fountains of Spain's iconic Alhambra, explore the curious history of these imposing European structures and the creatures that call them home.

Prepare to be awed by the once-in-a-lifetime meeting experienced by a group of divers and photographers in Hawaii, who hung out near a sperm whale carcass to photograph the tiger sharks who came to feed. Suddenly, everything went ...

A documentary about people who are trying to document birds of paradise. Despite the title, the focus is on the filmmakers' challenges, not the birds.

Follow Dr. Susan Kelleher and staff as they treat all forms of exotic animals at her hospital in Deerfield Beach, FL

Ancient investigations go digital as new forensics lab technologies help specialists solve key mysteries from over 70,000 years of human civilization. CT scans of 3,000-year-old murder victims to infrared satellite images of lost cities

The special is in partnership with The Washington Post and staff writer Christian Davenport, whose depth of experience allowed him to gain inside access to key players.

Buyers head to Alaska for adventure and possibly a new home. During the search, these home seekers discover everything the great state has to offer as they decide if living in America's Last Frontier is right for them.

Rookie The greenhorns must pass a grueling three-week trial and they must impress their captains and crew mates and they may be awarded a place on board through the high season

Modern historians, equipped with state-of-the-art technology and newly discovered evidence, rewrite the nation's most iconic stories.