4Mysteryland
Mysteryland is a series of electronic dance music festivals held by the Netherlands-based promoter ID&T. Being the first of its kind in the country when it was established, its organizers have billed the event as the oldest dance music festival in the Netherlands. It has most recently been held at Haarlemmermeerse Bos in Haarlemmermeer.
In 2011, an international edition of Mysteryland was held in Chile, the first to be held outside the Netherlands. Over the Memorial Day weekend in May 2014, the first U.S. edition of Mysteryland was held at the Bethel Woods Center for the Arts, the site of the notable Woodstock festival held in 1969. Headliners included Kaskade, Moby, Steve Aoki, Dillon Francis, and Flosstradamus. It is traditionally held on the final Saturday of August.