By Andrew Purvis
Old town streets in Tallinn, Estonia.
Peeter Viisimaa / Getty
Residents of the tiny Baltic republic of Estonia have a reputation for being practical, down-to-earth, and forward-looking. The country boasts one of the world's highest rates of mobile phone and computer use. The coding for Skype was written here. But allow the conversation to turn to the supernatural and the stereotypical, and the sober-minded Estonian disappears in an instant. "Of course we have a ghost! This is Tallinn!" Anne Orro, a gray-haired receptionist in the medieval capital, exclaimed one rainy October evening recently. "It's not normal not to have a ghost."