Great Alaskan Railroad Journeys

In the frontier town of Nome, Alaska, there’s a gold rush on. But you've never seen gold mining like this before — here, the precious metal isn't found in the ground. It’s sitting in the most unlikely of places: the bottom of the frigid, unpredictable Bering Sea. And there are a handful of people willing to risk it all to bring it to the surface.

Now Karl’s turned 40 and has officially hit middle age, it’s time for him to re-assess his life. He’s not married, he doesn’t have kids, he’s got a job where he’s known as an ‘idiot’, and he’s known for being miserable. He’s classic ‘mid-life crisis’ material. As Karl attempts to put his life in order, he’ll be dispatched around the world on a crash course to find out how other cultures deal with life’s big questions. The ups and downs of Karl’s experiences will be contrasted against the beautiful geography of the countries he visits, captured on HD with stunning aerial photography.

From roots in the Deep South to the slums of New Jersey, "Who Do You Think You Are?" follows the journeys of some of the most well-known names in American popular culture. Watch as celebrities discover unknown details about themselves and their families while researching their ancestry with the help of historians and genealogical experts.

Intrepid adventurer Michael Palin takes a journey through the Himalayas.