TRENTON, N.J. (RWN) "Step here, brother," Terry Dean says, "but step softly. You are walking on sacred ground."

We're outside the former state capital of New Jersey, its dome crumbling, its white walls scorched. The lawn leading up to it is rolling - a hill means a grave, Dean says.

And he should know. As the owner of Martyrs Tours of Philadelphia, Dean has established himself as one of the leading sources of information on the civil war.