Brian Armstrong Movies

A documentary about the development and spread of the virtual currency called Bitcoin.

The tiny, subterranean shrew uses echolocation like a bat, venom like a snake, and must eat every two hours to survive.

The rugged coast of our biggest state harbors the most incredible wildlife in America. When winter breaks, animals make the most of the endless...

Glacier National Park is undergoing dramatic changes. As the glaciers that give this wilderness its name rapidly melt away, it is clear the park will...

Big-cat expert Boone Smith tracks pumas in Patagonia, but the tables are turned when a big cat starts to stalk him.