Cosmic particles from outer space, drawn to the pole by the planet’s magnetism? Great curtains of multi-coloured lights, dancing like spectres in the night sky? If you pride yourself on being something of a traveller and a connoisseur of destinations, you simply have to experience the Northern Lights.

Similarly, you have to stay – at least once – in the Ice Hotel. Forget igloos, this is a fantastical sculpture, carved from ice into a winter palace like no other. Expect crystalline chandeliers and ornate carved doorways leading to bedrooms with ice sculptures and ice murals on the walls. This is an art project on a grand scale and – at -5ºC – as ephemeral as temperature itself. And it includes a very chilled bar serving cool cocktails, wine and cold beer. Now that’s hot!