1 May - 31 Aug (annual)
Birka
Birka, Sweden
Birka is a UNESCO World Heritage Site just 20km outside Stockholm. A fortified town and former home of Viking Kings, the settlement is now unveiling its secrets to archaeologists and visitors.
Wikipedia
13 - 14 Sep (biennial)
Swedish Military Tattoo
Stockholm Globe Arena, Stockholm, Sweden
The Swedish Military Tattoo, held at Stockholm’s Globe Arena, entertains the whole family and shows off the army’s many talents,
including music.
28-30 Sep
Stockholm Beer & Whisky Festival
Stockholm, Sweden
One of the most important events on the European beer circuit.
13 Dec
Sankta Lucia Day
Sweden
If you're in Sweden in early December, don't forget to head to church and witness a parade of white-gowned young women with candle crowns. The singing is excellent, and the traditional saffron buns and ginger snaps aren't too bad either.