

Following three air crash investigations in which examiners are pushed to the limit to crack the cases.

Oregon's Cascade Mountains; Columbia River waterway.

A day-long aerial tour of the New England city of Boston in Massachusetts; where Americans first rebelled against Britain by dumping chests of tea into the harbor and where rock band Aerosmith first made it big.

A look at America's landmarks, including a view of bears catching clams in Alaska's rivers; a high-flying tour reveals Alaska's call of the wild spirit that has lured adventurers and dreamers north for centuries.

An aerial tour over America's coastlines explores the visual splendor and rich history of the nation's varied borders.

An amazing aerial tour over Utah reveals a state full of otherworldly landscapes and landmarks, including a history steeped in Mormonism, pioneering tragedy, and Olympic glory.

Taking flight for a bird's eye tour of America's rivers, lakes and canals.

America's most remarkable natural wonders are explored including the Grand Canyon, the Great Lakes and more.