The High-Luminosity LHC (HL-LHC) is a major upgrade of the LHC that aims to increase the number of particle collisions that occur each second and the amount of data that the experiments can gather and analyse. Come and discover the technologies that will make it possible.

Find out how surveyors align accelerators components with a high precision using sensors and adjustment systems.

Ride, run, or row along with live action videos on Kinomap. Have a virtual bike ride through the LHC during the CERN Open Days. Try to break the speed record or be faster than your friends or family.

Come and meet the CERN community. Find out how your country is represented at CERN, have a coffee with one of our scientists, and learn about the Future Circular Collider project and the Middle East's SESAME light-source facility, an example of science for peace in action. All this interspersed with listening to music performed by CERN scientists and staff members, or laughing at comedy by the Big Van Ciencia troupe from Barcelona. For those of you who have worked at CERN, see what the CERN Alumni Network has to offer and connect with the CERN Alumni Relations team.

The ISOLDE facility produces beams of exotic ions for studies of the structure of atomic nuclei and a variety of other purposes including medical applications. Discover the facility and get hands-on demonstrations of some of the techniques used to perform experiments at the facility.

Let your imagination run wild constructing parts of the CMS detector with Kapla wooden blocks.

Watch a demonstration of objects weighing several tonnes being moved with 0.1 mm precision and see a laser scan of an industrial object. More details to come.

The LHC fault burner is a powerful device that uses high electrical current and voltage to eliminate metallic debris from the LHC superconducting circuits and improve their performance. Want to see how it works? Spectacular special effects guaranteed.

Take a walk through the underground tunnel of the world's largest accelerator. Among the highlights, you will see the superconducting cavities that accelerate the particles in the LHC, the bending magnets of the machine and the cavern with radio-frequency equipment.

A proton beam circulating in the LHC can contain as much energy as a high-speed train travelling at 150 kilometres per hour, which needs to stay on track. How can we stop the beam and absorb this energy? Here you will explore the LHC 'beam dump' system.