Save 20%: Prague Ghost Walking Tour by Viator Save 20%: Prague Ghost Walking Tour by Viator – Save 20%: Prague Ghost Walking Tour. Deal Start Date: 12/12/2014 Deal Expires: 12/31/2014 Last Updated: Fri, 12 Dec 2014 16:56:58 GMT Keywords: Prague, Ghost & Vampire Tours Other Deals Like Save 20%: Prague Ghost Walking Tour by Viator: