Where: Heerenveen, Netherlands
When: February 12 - 15, 2015
More: The event is held every year, except Olympic years, and feature championships across 5 distances from 500 to 10,000, plus a team pursuit race for both men and women. These Championships are separate from the All-Around and Sprint Championships, due to the popularity of specialization across distances.
Fun Fact: The Netherlands is by far the most successful nation in the history of the Championships, with 159 total medals to-date (Germany is in second with 90). German legend Claudia Pechstein is the individual all-time leader with 28 medals; Dutchman Bob de Jong (20) is the men's leader.
Official: http://www.schaatsen.nl/wsd2015-heerenveen