Global Underground Ltd. is a UK label responsible for a series of DJ mix compilations mainly featuring tracks from the progressive house #genre. The series is universally known as the "City Series" with each numbered release from a different #city around the #world. Nick Warren did 8! GU #024 Flyer of Nick's gig in Reykjavik. Petra and Nick traveled to Reykjavik and #Serbia within a week in late December 2007. Petra calls #Iceland the the land of geysers and elves. Above is a wonderful #horseback riding trail in #Heiðmörk. Heiðmörk in the #winter. Petra is not fazed by the #snow. An avid snowboarder, she bravely rode these amazing creatures early in the morning!