Other important cultural sights of the region are the art museum (Kunsthalle), the Rudolf Oetker concert hall ("Rudolf-Oetker-Halle"), and the city's municipal botanical garden (the Botanischer Garten Bielefeld). Bielefeld is home to the widely known Bielefeld Children's Choir ("Bielefelder Kinderchor"), founded in 1932 and in the postwar era famed for its recordings of traditional German Christmas carols. Particularly notable is the choir's annual Christmas Concert in the Rudolf Oetker concert hall. Foreign tours have taken the choir to many European countries, and also the US and Japan.