Celtic Mysteries: Windows to Another Dimension in America's Northeast

Centered in New York's Hudson River Valley are a series of mysterious stone chambers and carved standing megaliths that have perplexed researchers of the paranormal and archaeologist for decades. What are the strange carvings and language written on the chambers walls? Why are these structures built over areas of negative magnetic anomalies? Scientists and historians tend to write off these structures as colonial root cellars, but authors Philip Imbrogno and Marianne Horrigan, who have rese...