The story of the three women General Ulysses S. Grant credited as helping the North win the Civil War

On the 150th anniversary of its founding, Kevin Costner explores Yellowstone National Park to find out if it's still as wild and untouched as it was...

The series is said to detail how the Wild West period of American history continues to impact the country today.

Follow Kevin Costner as he traces the footsteps of the pivotal 1903 Yosemite expedition of 26th President Teddy Roosevelt and environmental advocate...