A Renaissance fair, Renaissance faire, or Renaissance festival is an outdoor weekend gathering, usually held in the United States, open to the public and typically commercial in nature, which emulates a historic period for the amusement of its guests. Some are permanent theme parks, while others are short-term events in fairgrounds or other large public or private spaces. Renaissance fairs generally include an abundance of costumed entertainers or fair-goers, musical and theatrical acts, art and handicrafts for sale, and festival food. Some offer campgrounds for those who wish to stay more than one day. Many Renaissance fairs are set during the reign of Queen Elizabeth I of England. Some are set earlier, during the reign of Henry VIII, or in other countries, such as France, and some are set outside the era of the Renaissance; these may include earlier Medieval periods, or later periods, such as 17th-18th Century pirates. Some engage in deliberate "time travel" by encouraging participants to wear costumes representing several eras in a broad time period. Renaissance fairs encourage visitors to enter into the spirit of things with costumes and audience participation.