Crossing over the Parana River from Posadas, Argentina to Encarnacion, Paraguay, you get the feeling that you have crossed into another world. On the Argentine side the buildings are tall and shiny, the streets alive with people, lights and music and the roofs topped with bars overlooking the river. However as soon as you step off the bus after crossing the very elaborate Puente Roque Gonzalez de Santacruz Bridge, clutching your newly acquired Visa, the streets turn a red, dirt colour and the effectiveness of the Argentine garbage removal system disappears. With many border crossings in South America the landscape and scenery separating the two countries is quite similar and the feeling of entering a new, foreign state lacks. However crossing from Argentina into Paraguay gives you the feeling that you have caught the bus one stop too many leaving civilization behind you.