In the heart of Stockholm, Avicii Arena is an icon of architecture and culture. Since opening in 1989, the spherical building—designed by Bergs Arkitektkontor and built as the world’s largest of its kind—has hosted everything from ice hockey games to sold-out concerts. With a diameter of 110 meters and an interior height of 85 meters, the arena housed up to 17,303 guests when Metallica broke the attendance record in 2018.