"Discover the true story of the Twin Towers--how they came to be the tallest buildings in the world and why they were destroyed. When the Twin Towers were built in 1973, they were billed as an architectural wonder. At 1,368 feet, they clocked in as the tallest buildings in the world and changed the New York City skyline dramatically. Offices and corporations moved into the towers--also known as the World Trade Center--and the buildings were seen...

"Learn how the United States ended up fighting for twenty years in a remote country on the other side of the world. The Vietnam War was as much a part of the tumultuous Sixties as Flower Power and the Civil Rights Movement. Five US presidents were convinced that American troops could end a war in the small, divided country of Vietnam and stop Communism from spreading in Southeast Asia. But they were wrong, and the result was the death of 58,000 American...

There are canyons all over the planet, and the Grand Canyon in Arizona is not the biggest. Yet because of the spectacular colors in the rock layers and fascinating formations of boulders, buttes, and mesas, it is known as one of the Seven Natural Wonders of the World. Starting with a brief overview of how national parks came into being, this book covers all aspects of the canyon--how it formed, which early native people lived there, and what varied...

Teaches important dates and facts about the Battle of Gettysburg.

An examination of the Battle of Gettysburg in 1863, day by day as well as Lincoln's Gettysburg Address.

La mañana del 24 de agosto, 79 dC, parecía como cualquier otro en la ciudad romana de Pompeya. Así que nadie estaba preparado cuando el cercano volcán Monte Vesubio repentinamente estalló, cenizas que enterraban la ciudad y sus habitantes. El desastre dejó miles de muertos, y Pompeya no fue más que un recuerdo de casi 1.700 años. En 1748, los exploradores redescubrieron la ciudad portuaria con edificios intactos y hermosos mosaicos. The morning...