Friday, Saturday, Sunday, May 18 – 20, in Czech Village, Cedar Rapids, Iowa. Houby Days is the annual celebration of the mushroom. Fun for the whole family. Enjoy the parade, sample Czech & Slovak cuisine, shop local vendors, listen to traditional Czech & Slovak music. Learn traditional May Pole dances. Attend the National Bohemian, Moravian, & Slovak Folk Dance Festival featuring the Saint Paul Czech & Slovak Folk Dancers from St Paul, MN. And the puppet show presented by the Eulenspiegel Puppet Theatre Company.