Clean sweep for Eastern Europe as Post Office reveals best value cities for a pound-stretching break
10 cheapest cities: Krakow, Vilnius, Riga, Warsaw, Budapest, Moscow, Prague, Athens, Lisbon and Lille • Krakow is best value as Eastern European capitals take top seven places in the 10th annual City Costs Barometer (www.postoffice.co.uk/citycosts) • High hotel prices make Amsterdam most expensive • Moscow is highest top 10 entrant – one of seven cities where prices have fallen