If you're seeking maximum value for your holiday budget and fancy somewhere completely off the beaten track, then this destination fits the bill perfectly. Asunción, Paraguay 's capital, officially holds the title of the world's cheapest city , yet tourists still aren't flocking there in droves. The place is so incredibly affordable that travel journalist Rob Crossan was once ridiculed in a nightclub after paying the equivalent of 55p for a local delicious pie, which should have cost virtually