Discover CERN

Accelerate: explore CERN’s particle accelerators

Scientists from all over the world join forces at CERN to answer profound questions about the Universe. Let them guide you through the laboratory! 

An immersive scenography will transport you to the underground tunnels where the smallest building blocks of matter accelerate and collide. Discover machines of a remarkable scale and complexity.

Tours for groups

Are you a group of high school or university students, scientists, experts or simply curious about CERN? Take the opportunity to visit the heart of CERN’s research and engineering facilities on a tailor-made guided tour. Let us know your areas of interest and we will do our best to create a customised tour of CERN for you! 

Guided tours for groups of more than 12 people need to be booked up to nine months in advance. Please note that slots fill up within a few days. Find out how to book here.

Magnet challenge (8-12 years)

Find out how magnets work, how they interact with other materials, and how we use magnets in experiments at CERN.

CERN uses thousands of magnets for particle physics experiments. For example, strong electromagnets are used to bend the paths of protons in the Large Hadron Collider (LHC). We can also find strong permanent magnets in particle physics research, for example, inside the AMS particle detector, which is attached to the International Space Station. 

Seeing the invisible (5+ years)

How can we make the invisible visible? Explore how balls interact with a hidden structure to come up with your best model of what the invisible structure is and learn more about the Nature of Science!

A lot of phenomena scientists at CERN investigate are invisible to our eyes! For example, particles cannot be seen with the naked eye, and properties such as their mass, energy and charge can only be determined indirectly. How do scientists design clever experiments to understand things that aren’t visible?