Perlan
A glass dome built on top of the city's hot-water tanks, on a wooded hill twenty minutes' walk from the centre. The exhibitions run 9am to 9pm and the ticket covers all of them: the hundred-metre artificial ice cave carved from about 350 tonnes of Icelandic mountain snow, the planetarium with the northern lights, and the 360° deck. It is the alternative to the coast when the weather is foul, which in Reykjavík it often is: you stay indoors and still see the whole city.
