There is also an external exhibition in the city cente: Helénsgården ('Helén's farm' or also Helénsstugan – 'Heléns cottage' or Petter Heléns stuga – 'Petter Heléns cottage'). It is the only remaining building from the great fire affecting the city in 1759, which essentially destroyed the whole town. Helénsgården was probably built in the beginning of the 18th century and is today protected as a cultural preservation. Its park is used widely as a meeting place and for events such as Sweden's National Day celebration.