goes past some of the old drifts and the pithead building. Parks Halle has no laid-out parks. Merely the Friedhof I (Cemetery I) near the train station is park-like with large free spaces. Numerous playgrounds, among them those covering a relatively vast area, e.g. the Laibach-playground, are used like parks by the population. Museums Halle has the only "museum for works of childhood and adolescence of important artists" in the world. Namely paintings during adolescence of artists like Paul and Felix Klee, August Macke, Ernst Ludwig Kirchner and Pablo Picasso are in the focus of the museum's work. In the remise of the Kisker House there are regular single and group exhibitions of visual arts with regional reference. Contemporary artwork, sculptures, acrylic, oil and aquarelle paintings and photo arts are presented. In the former leather manufacture Güttgemanns more than 15 local artists and artisans took domicile. They regularly organize joint exhibitions and presentations. Music In February Halle hosts the super regionally renowned "Haller Bachtage", with choir- and orchestra concerts, chamber and organ concerts being staged during one week. In many cases international celebrities of classical music can be engaged (Peter Schreier, Thomas Quasthoff, Petr Eben a.o.). Natural monuments and nature reserves In terms of nature reserves Halle has an outstanding position in the district of Gütersloh in more than one respect, since with a total of seven designated nature reserves it is home to the highest number and the single biggest reserve of all communities in the district. Also with 939.3 ha the total area covered by the reserves is in absolute area as well percental with roughly 13.6% in relation to the community territory the biggest in the district. Approx. of the Tatenhausen Forest are protected by the Habitats Directive of the European Union. This area hosts rare bats like the Bechstein bat, the greater mouse-eared bat and the pond bat. Moreover, the Laibach creek is a habitat for the common kingfisher. The reserve is the only known habitat for the rare great capricorn beetle in Germany. Typical types of biotopes are mixed forests of beech and oak with a high degree of old wood and alder-ash tree-pasture forests. Sports Every year in June Halle hosts the Halle Open, one of a handful of ATP tournaments in the world played on grass. Tennis professionals use this tournament as a tune-up for Wimbledon. In 2007 the Gerry-Weber-Stadium, which is the