On a trip to La Colmena in the Paraguari department, I found awesome landscapes with colourful scenes of urban life such as sugar cane plantations (quite important nowadays for etanol and alternatives to petrol), rainforest and waterfalls!

In these area of Paraguay, it is located the famous Salto Cristal waterfalls (70 mts high). You need to do a bit of a hike to reach them because it is just in the middle of a rainforest. The trip it is worthwhile though as the views are awesome and if it is hot enough you can even swim.