The President of the Republic of Costa Rica C. Alvarado Quesada signing the Guest book with CERN Director- General 2016-2025 F. Gianotti, at CERN LHC Point 2, SD surface hall.
The President of the Republic of Costa Rica C. Alvarado Quesada signing the Guest book with CERN Director- General 2016-2025 F. Gianotti, at CERN LHC Point 2, SD surface hall.