The world's biggest bonfire is built annually in Alesund, Norway to celebrate Sankthans, or Midsummer, which commemorates John the Baptist's birth. For this festival, wood pallets are stacked over 40 meters high on an artificial island to form Slinningsbålet bonfire. In 2010, a record was set with a structure reaching 40.45 meters tall. About 30-40 people help build the bonfire, which someone must climb to the top of and light from above to ensure it burns safely down.