The 3.8-metre (12 ft) wide concrete-lined tunnel, constructed between 1983 and 1988, was formerly used to house the Large Electron–Positron Collider.
Terowongan sepanjang 3,8-meter (12 ft) berlapis beton, dibangun tahun 1983-1988, sebelumnya pernah digunakan menjadi rumah Penumbuk Elektron-Positron Besar.