Ijslandse les, 1: kennismaking

So let's do a quick comparison between the English and Icelandic language then! Let's use the word "day" for example… just for fun. In English, in any context, the word can only be written two ways - day or days (singular and plural). In Icelandic however, it can be written 16different ways (depending on the context) - dagur; dagurinn; dag; daginn; degi; deginum; dags; dagins; dagar; dagarnir; daga; dagana; dögum; dögunum; dagar; dagarnna.

source: http://www.grapevine.is/home -- English Newspaper from Reykjavik

Líven says, It´s the first language I encounter where some words and sounds are pronounced while breathing in.