3. Fire Festival, Shetland

Scotland might not be the obvious destination for a winter holiday, but if you're the hardy type you'll be rewarded by the beauty of the winter landscape - and some unusual activities. Head to Shetland in January, and you can witness the Up Helly Aa fire festival. With processions, singing, and the burning of a replica Viking ship. It might be chilly at that time of year, but at least the fires will keep you warm!