Massachusetts, the birthplace of America, is home to some of the most fascinating haunts in the world. Colonial ghosts still watch over their ancient inns in Concord and Charlemont. A railroad tunnel under the Mohawk Trail is doomed by the spirits of those who perished while digging it. The unearthly shrieks of a banshee in Marblehead chills the very marrow of those who must endure its curse. And phantom trawlers ply the waters near Gloucester. You...