Sentinels of History was conceived of as a way to mark the turn of the millennium by the Arkansas Historic Preservation Program. This generously illustrated boo

During much of the Cold War, America's first line of defense was in outer space: a network of secret satellites that could provide instant warning of an enemy m

West Rock and East Rock are bold and beautiful features around New Haven, Connecticut. They resemble monumental gateways (or time-tried sentinels) and represent

Lighthouses have always unsettled and attracted in equal measure, highlighting the triumphs and failures in humanity's battle with the forces of nature. Taking

The story of the improbable campaign that created America’s most enduring monument. The Statue of Liberty is an icon of freedom, a monument to America’s mul