Comprehensive chronicle of the Hoover Dam, one of the most ambitious engineering projects of all time. Shows the footage that documents every step of the monumental work of taming the Colorado to provide water and power to California, Nevada and Arizona. Includes interviews with the men who worked on the dam.

Where in Washington DC is the nation's most incredible treasure chest? It's a library unlike any other in the world, the U.S. Library of Congress in Washington D.C. Modern Marvels explodes the myth that this 200 year old institution is simply "where members of Congress borrow books". Viewers are taken beyond the magnificent Jefferson Building Great Hall into the secret vaults where more than 600 miles of shelves hold 130 million items, many of them...

The potato is among the most versatile, nutritious, and diverse foodstuffs in the world. Learn some new things about this amazing crop, from the potato's mysterious origins in the South American Andes to its prominence in the ethnic enclaves of New York's Lower East Side. In Northern Maine, meet a farmer of exotic potatoes, including blue, green, pink, and dark purple varieties, witness how large-scale potato producers slice, dice, freeze, and dehydrate...

A documentary that explores the history of corn in America, how it is harvested and canned, and how it can be converted into fuel.

Discover how air, water, earth, and fire are transformed into clean, reliable sources of heat, electricity, and even automobile fuel, and take an in-depth look at solar, wind, geothermal, biofuel, and tidal power.