The postcard-perfect French village of Clisson, known for its historic ruins and picturesque river, transforms one weekend each June into the heavy metal mecca known as Hellfest. More than 160 bands show up to perform on six stages with subgenres that include pagan metal, stoner, punk, thrash, grind, and black metal. The 150,000+ extreme music typcially spend the weekend camping and exploring the the wide-ranging Hellfest experience. Act quick. Hellfest sells out every year.