Text and color photographs highlight the natural beauty of the more than 300 United States national parks and describes efforts to promote the preservation of these areas.

Volcanoes, earthquakes and other phenomena of earth are explored

Examines the mountains of the world and the people who inhabit them.

Takes a look at major discoveries made throughout the years, introduces the individuals responsible for them, and discusses their impact on society

A report on hundreds of national historic sites, state parks, battlefields, towns, homes and restorations in the United States with an explanation of their historic significance.

Discusses the major religions of the world, including Hinduism, Buddhism, Judaism, Islam, and Christianity.