People sometimes use pyres to make a big fire or bonfire but they do not burn a real body. These types of pyres are used for celebrations or to remember a person or a special event. Pyres are often used in Guy Fawkes Night celebrations in the United Kingdom and some Commonwealth countries. In Denmark and Germany people light pyres to celebrate the summer solstice (the longest day of the year). People light pyres in Switzerland to celebrate their National Day.