Reykjavik, Iceland
Festival heaven for: Electronica nuts, sun worshippers (literally)
Thanks to the likes of Björk, Sigur Ros and more, Iceland is now one of the hippest countries to party in, and Secret Solstice is the place to go. Not only does it have a great line-up of DJs and electronica-dabbling bands and artists, it also takes place over the summer solstice weekend: as you're in Iceland, this means the sun doesn't set for three whole days, leaving you no option but to stay up all weekend and party.