Draugasetrið, on the top floor of a huge maroon-and-black warehouse in the centre, is a veritable haunted house run by a gaggle of blood-thirsty teens. A 50-minute iPod-guide (in many languages) recites 24 spooky stories in a series of dry-ice-filled stations. Not recommended for small fry. There's a waterview cafe, too. On the other side of the building, the accompanying Icelandic Wonders involves trolls, elves and Northern Lights (so is a better bet for young children).