Megastructures

Following U.S. Customs and Border Protection and U.S. Immigration and Customs Enforcement officers.

Witness the rarely seen magic of the longest river system in the United States and the drama of the creatures that are drawn to the Mississippi for survival including bears, wolves, wild boar, bull sharks and alligators. The exploration of North America's greatest waterway is a roller-coaster ride of drama with visuals sure to take your breath away.

Three years in the making, Great Migrations is a landmark series featuring the epic struggles of animal migrations around the planet, and the groundbreaking science behind these life-or-death marathons. It's a chronicle of inspiring, often harrowing journeys, unforgiving odds, and what it really means to move as though your life depends on it.

Madness in the White City examines the construction and success of the 1893 Chicago World's Fair which featured electricity, a Ferris Wheel, and the remarkable "White City". It also examines the life and murders of serial killer H.H. Holmes who used the World Fair to acquire victims who he murdered in his hotel.